电子信息专业英语之数字信号处理篇
An analytical study of digital signals, however, is difficult, because quantization is not a linear process. To simplify the discussion, we use decimal numbers to illustrate this point. Suppose every number is to be rounded to（四舍五入） the nearest integer (that is, the quantization step is 1); then we have ： 然而对于数字信号的分析研究却很困难，因为量化 并非线性的过程。为了讨论简便，我们用十进制数 来说明这一点。假设每个数值都量化为最近的整数 （也就是量化阶为1），则有：
In this case, an error message can be sent, and the message be retransmitted(转发). On the compact disc（光盘）, 1 and 0 are represented by dimples（凹痕）. The leading and trailing edges of a dimple represent a 1（凹痕的前端和后端表示1）; no change represents a 0（无变化则为0）. 在此情况下，可以发送错误信息，要求重传信号。 在光盘上用凹痕来表示0和1，凹痕的前端和后端表 示1，无变化则为0，
In quantization, if the amplitude（大小） of a discrete-time signal does not fall exactly on a quantization level, then the value must be approximated by a quantization level either by truncation or rounding, in either case, errors will occur. Such errors are called quantization errors. 量化时，如果离散时间信号的大小与量化电平不一 致，那么它就必须以截断或舍入的方式用相应的量 化电平来近似。两种情况下都会产生误差。这untered in practice are mostly CT （continuous time）signals. To process an analog signal digitally, it must first be discretized in time to yield a discrete-time signal and then quantized in amplitude to yield a digital signal. Therefore, in actual digital signal processing, we deal exclusively(排外地, 专有地) with digital signals. 在实际中常见的信号是连续时间信号，为了以数字 的方式处理模拟信号，首先要将模拟信号进行时间 离散化，产生一个离散时间信号，然后量化其幅度 产生数字信号。因此，在实际信号处理中，我们只 处理数字信号。
The precise voltage of each symbol is not important, but it is critical that its value lies within one of the two allowable ranges. If the value lies outside the two allowable ranges, the telegraph must make a choice of either 1 or 0, and an error may occur. 每个符号所表示的准确电压值并不重要，关键是它 要落在上述任意一个允许范围之内，否则就必须在 0，1之间作出选择而可能发生错误。
i 0
a0
每一个 a 称做一个二进制位或比特，取值只能是1 或者0。该序列中有6个位，最左边的是符号位， a ＝0代表正数， ＝1代表负数。
i 0
The remaining five bits represent the magnitude of the number（剩下的5个比特 代表该数的大小）. For example, we have
There are many types of binary coding. In this section, we discuss the simplest one, called sign-and-magnitude coding（符号及值编码）. Consider the following sequences of a i :
1 1 0 0 1 1 (1 21 0 20 0 21 1 22 1 23 ) 2.375
剩下的5个比特代表该数的大小。例如，…
The left-most bit, excluding the sign bit, is the most significant bit (MSB) and the right-most bit is the least significant bit (LSB). If we use 10 bits to represent the decimal（小数的） part of a number, then the LSB represents = 1/1024 = 0.0009765, which yields(产生) the quantization step（这即是量 化阶）. 除符号位外最左边的位是最高有效位，而最右边的 位是最低有效位。如果用10个比特表示一个数的小 数部分，最低位表示为＝1/1024 = 0.0009765, 这即是量化阶。 exclude(v.): 把...排除在外
This type of representation, however, is not used because it is susceptible to（易受影 响的） noise, shifting of power supply, and any other disturbances. 然而并未采用这种表示法，因为它易受到噪 声、电源起伏及其它干扰的影响。
Each bit occupies approximately a distance of 1 micrometer (10-6 meter). This type of representation of 1 and 0 is much less susceptible to noise. Furthermore, it is easy to implement. Therefore, digital signals are always coded by ones and zeros in physical implementation. This is called binary coding. 每位数据大约占据1微米的长度。这种表达方式受 噪音的影响很小，而且，易于实现。因此，实现时 数字信号总是用0，1编码，称做二进制编码。
In practice, these symbols are coded as sequences of dashes（划线） and dots（点） or, equivalently, ones and zeros. The symbol 0 can be represented by a voltage from 0 to 0.8V. The symbol 1 can be represented by a voltage from 2.0 to 5.0V. 在实际应用中，这些符号被编成一串点、划， 或者1和0。符号0可以用0到0.8伏之间的电压 表示；符号1可以用2.0伏到5.0伏之间的电压 表示。
Introduction to Digital Signal Processing
6.1 Representation of Digital Signals 数字信号的表示
Messages sent by telegraph are digital signals. They are written using 26 alphabetical（字母的） characters, 10 numerals（数字）, and symbols（符 号） such as commas（逗号） and periods（句 号）. These symbols certainly can be represented by different voltage levels, for example, A by 10V (volts), B by 9.5V, C by 9V, and so forth. 电报发送的消息是数字信号。这些消息由26个英文 字母，10个数字，逗号句号等符号组成。它们可以 用不同的电压来表示，例如用10伏表示字母A，9.5 伏表示字母B，9伏表示字母C，等等。
：
a0
a1
a2 20
a3 2-1
a4 2 -2
a5 2-3
Sign bit 21
二进制编码的方式有很多种，本节讨论最简单的一种， 叫做符号及值编码。考虑如下序列 a i
Each a can assume（取值） only either 1 or 0 and is called a binary digit or bit（二进制位或比 特）. There are six bits in the sequence. The leftmost（最左边起） bit is called the sign bit（符号 位）. The sequence represents a positive number if a = 0 and a negative number if a0 = 1.
电子信息工程专业英语专业术语速查表5.0
AA/D abbr. Analog-to-Digital 模数转换16, 17AC abbr. alternating current 交流电5AC analysis 交流分析5 accumulator [ə'kjuːmjʊleɪtə] n.累加器17 accuracy [ˈækjʊrəsi] n.精度6 acquisition time 采集时间16 activate [ˈæktɪveɪt] vt. 激活3active [ˈæktɪv] adj.有源的4, 18 actuator [ˈæktjʊeɪtə] n.激励器4ADC abbr. analog-to-digital converter 模数转换器6, 18 addition [əˈdɪʃən] n. 加法3 address generator 地址产生器17 address latch 地址锁存器3 address pointer 地址指针2 addressing mode 寻址模式26 ADSL abbr. Asymmetrical Digital Subscriber Loop 非对称数字用户线21AFG abbr. Arbitrary Function Generator 任意函数发生器28 algorithm ['ælgərɪðəm] n. 算法27 aliasing ['eɪlɪəsiŋ] n.混叠16ALU abbr. Arithmetic Logic Unit 算术逻辑单元3 amplifier [ˈæmplɪˌfaɪə] n. 放大器4 analog interfacing模拟接口（技术）6 angular [ˈæŋɡjələ] adj.角度的5 angular frequency 角频率5 annotation [ænə'teɪʃən] n.标注15 antenna [ænˈtenə] n.天线10anti-aliasing filter 抗混叠滤波器6, 16 array [ə'reɪ] n.数组26ASIC abbr. Application-Specific Integrated Circuit 专用集成电路13, 14, 15, 16, 25专用集成电路assembler [əˈsemblə] n. 汇编器3 assembly language 汇编语言3 ASSP abbr. Application-Specific Standard Part 专用标准部件14, 25 asynchronous [ə'sɪŋkrənəs] adj.异步的13 attenuator [ə'tenjʊeɪtə] n. 衰减器29 audio [ˈɔːdiəʊ] adj.音频的6 automatic variable 自动变量26AWG abbr. Arbitrary Waveform Generator 任意波形发生器28axis [ˈæksɪs] n. 坐标轴5Bbackplane [ˈbækˌpleɪn] n. 背板；底板9 backward compatible 向下兼容21 bandwidth ['bændˌwɪdθ] n.带宽6第 1 页共15 页bar graph 柱图22base band 基带6base station 基站10, 21battery [ˈbætəri] n. 电池7, 12baud [bɔːd] n.波特21Bessel filter 贝塞耳滤波器19biased [ˈbaɪəst] adj.加偏压的7bill of materials 材料单25binary number 二进制数3BIOS [ˈbaɪɒs] abbr. Basic Input Output System 基本输入输出系统3bipolar [baɪˈpəʊlə] adj.双极性的2bit pattern 位模式3bit vector 位向量26block diagram 方框图6block diagram 框图19BNC abbr. bayonet Neill–Concelman BNC连接器9Bode plot 伯德图5bond [bɒnd] n.接头9boot sector 引导扇区3branch instruction 分支指令26缓存器；；缓存区3, 10 buffer [ˈbʌfə] n. 缓存器bunching ['bʌntʃiŋ] n.聚束19bus interface 总线接口16Ccable ['keɪbl] n.电缆12cache [kæʃ] n.高速缓存2CAD abbr. Computer Aided Design 计算机辅助设计13, 18calculation-intensive algorithm 运算密集型算法17CAM [kæm] abbr. Content Addressable Memory 内容寻址存储器2capacitance [kəˈpæsɪtəns] n. 电容（值）5capacitive [kəˈpæsɪtɪv] adj. 容性的9capacitor [kəˈpæsɪtə] n.电容器2, 5capacity [kə'pæsɪtɪ ] n.容量10capture ['kæptʃə] vt. 输入，记录13carrier wave 载波24carry bit 进位位3cascade [kæsˈkeɪd] n.级联5cathode ['kæθəʊd] n. 阴极29CB abbr. Citizen's Band 民用波段10CCD abbr. Charge Coupled Device 电荷耦合器件18, 23CD abbr. Compact Disc 光盘12, 13cellular [ˈseljʊlə] n.使用蜂窝技术的6channel [ˈtʃænəl] n.信道6第 2 页共15 页characteristic frequency 特征频率5 charge pump 电荷泵8 Chebyshev Type 1 filter 契比雪夫I型滤波器18 chip [tʃɪp] n. 芯片1 chip rate 码片速率21 chrominance [ˈkrəʊmɪnəns] n.色度24 circuit [ˈsɜːkɪt] n. 电路1 circuit board 电路板1 circuitry [ˈsɜːkɪtri] n. 电路2, 4, 6 circular [ˈsɜːkjʊlə] adj. 圆形的5 circular buffer 循环缓冲区17 class [klɑːs] n.类26 clock cycle 时钟周期3 clock generator 时钟发生器8 clock rate 时钟速率9 CMOS abbr. complementary metal-oxide-semiconductor 互补金属氧化物半导体2, 9, 12, 23 coding theory 编码理论11 comparator [kəmˈpærətə] n.比较器2, 6 compatibility [kəmˌpætɪ'bɪlɪtɪ] n. 兼容性16 compiler [kəmˈpaɪlə] n.编译器3, 26 complex plane 复平面5 component [kəmˈpəʊnənt] n. 元器件；组件；部件1 concurrent [kən'kʌrənt] adj.并发的15 concurrent process 并发进程26 conductivity [kɒndʌkˈtɪvɪti] n.导电性7 conjugate [ˈkɒndʒʊɡeɪt] adj.共轭的5 converter [kənˈvɜːtə] n. 整流器7 converter resolution 转换器分辨率6 coordinate [kəʊˈɔːdɪnət] n. 坐标5 cordless phone 无绳电话10 counter [ˈkaʊntə] n. 计数器3 coupling [ˈkʌplɪŋ] n.耦合9 CPU abbr. central processing unit中央处理器1, 12程序））25, 27交叉编译器（（程序cross-compiler 交叉编译器crosstalk [ˈkrɒsˌtɔːk] n.串扰9 crowbar [ˈkrəʊˌbɑː] n. 短路器7 CRT abbr. Cathode Ray Tube 阴极射线管29 cryptography [krɪp'tɒgrəfɪ] n. 密码学14 crystal [ˈkrɪstəl] n.晶体8, 18 CT abbr. Computed Tomography 计算机层析成像22 current source 电流源4 cutoff [ˈkʌtɒf] n.截止7 cutoff frequency 截止频率18第 3 页共15 页DD/A abbr. Digital-to-Analog 数模转换16, 17 DAC abbr. Digital-to-Analog Converter 数模转换器18 damping [ˈdæmpɪŋ] n.幅度衰减5 data acquisition 数据采集30 data compression 数据压缩18 data converter 数据转换器6 data processing 数据处理14 data rate 数据率19 data sheet 数据手册4, 6 dB abbr. decibel [ˈdesɪˌbel] 分贝5 DC abbr. direct current 直流电5 DCT abbr. Discrete Cosine Transform 离散余弦变换22 debug [diː'bʌg] vt.调试28 debugger [diː'bʌgə] n. 调试程序27 decimation [desɪ'meɪʃən] n.抽取6 declaration [deklə'reɪʃən] n.声明15 decoder [diːˈkəʊdə] n. 译码器3 delta modulation 增量调制（∆调制）11 denominator [dɪˈnɒmɪˌneɪtə] n.分母5 density [ˈdensəti] n. 密度2 design flow 设计流程13 design specification 设计规格28 desired signal 期望信号28 detector [dɪˈtektə] n.检波器8 deviation [ˌdiːviˈeɪʃən] n. 偏差8 device driver 设备驱动程序27 DG abbr. Data Generator 数据发生器28 dial tone 拨号音10 differentiation [ˌdɪfərenʃiˈeɪʃən] n. 微分4 digital [ˈdɪdʒɪtəl] adj.数字的1 digital cellular phone 数字蜂窝电话6 digital circuit 数字电路2 digital filtering 数字滤波6 digitization [ˌdɪdʒɪtɪ'zeʃən] n. 数字化16 diode [ˈdaɪəʊd] n. 二极管7 discrete [dɪ'skriːt] adj.离散的，分立的1, 13 discrete component 分立元件3 disk drive head 磁盘驱动器磁头18 dissipate [ˈdɪsɪˌpeɪt] vi.耗散7 distortion [dɪ'stɔːʃən] n.畸变28 division [dɪˈvɪʒən] n. 除法3 DMM abbr. digital multimeter 数字多用表28第 4 页共15 页Dolby Stereo 杜比立体声19 don't care 无关项15 downstream ['daʊn'striːm] n.下行比特流11 DRAM abbr. Dynamic Random Access Memory 动态随机存取存储器2 drive [draɪv] n.驱动器2, 12 DSP abbr. Digital Signal Processing 数字信号处理14, 18 DSP abbr. Digital Signal Processor 数字信号处理器16, 17 DSSS abbr. Direct Sequence Spread Spectrum 直序扩频21 duty cycle 占空比7, 8 DVD abbr. Digital Video Disk 数字视盘12 DVI abbr. Digital Video Interactive 交互式数字视频系统12 dynamic range 动态范围16 E合逻辑2, 9 ECL abbr. emitter coupled logic 射极耦射极耦合逻辑EDA abbr. Electronic Design Automation 电子设计自动化13, 15 edge detection 边缘检测22 EEPROM [ˈi:prɒm] abbr. Electrically Erasable Programmable ROM 电可擦除可编程只读存储器2 electrical power 电能7 electricity [ˌilekˈtrɪsəti] n. 电1 electron beam 电子束29 electronics [ˌilekˈtrɒnɪks] n. 电子学, 电子电路1, 7 embedded system 嵌入式系统13 emulation [ˌemjʊ'leɪʃən] n. 仿真16 encoding [ɪn'kəʊdɪŋ] n.编码19 end office 端局10 end product 最终产品16 erasable [ɪˈreɪzəbl] adj.可擦除的2 ethernet[ˈiːθənet] n. 以太网9, 12 even field 偶数场24 execute [ˈeksɪˌkjuːt] vt. 执行3 execution time 执行时间27 exponent [ɪk'spəʊnənt] n.指数17 exponential [ˌekspəˈnenʃəl] adj. 指数的5 expression [ɪk'spreʃən] n. 表达式26 external compensation 外部补偿4 FFCC abbr. Federal Communications Commission 联邦通信委员会10 FDM abbr. Frequency-division multiplexing 频分复用11 feature size 特征尺寸19 feedback [ˈfiːdbæk] n.反馈4 feedback component 反馈元件4 ferroelectric [ˌferəʊɪˈlektrɪk] adj.铁电的2 FFT abbr. Fast Fourier Transform 快速傅里叶变换6, 18第 5 页共15 页field [fiːld] n. 字段26 field operation 现场运行4 filter ['fɪltə] n.滤波器6 filtering [ˈfɪltərɪŋ] n.滤波9, 18 flash memory 闪存23 flip flop 触发器2 floating point processor 浮点处理器3 flux [flʌks] n.通量7 flyback [ˈflaɪbæk] n.回扫7 foundry ['faʊndri] n. 晶圆代工厂16 FPGA abbr. Field Programmable Gate Array 现场可编程门阵列13, 15, 16 frame grabber 帧采集器24 frequency conflict 频率冲突11 frequency masking 频率掩蔽20 frequency response 频率响应9 frequency reuse 频率复用10 frequency synthesizer 频率合成器8full range 满量程28 full scale 满幅度；满量程6full scale range 满量程范围16 functional accelerator 性能加速器16 fundamental frequency 基频29Ggain drift 增益漂移4 GBW abbr. Gain × Bandwidth 增益带宽积4 global data 全局数据26 GPP abbr. General Purpose Processor 通用处理器16 gray scale level 灰度级22 GSM abbr. Global System for Mobile communications 全球移动通信系统6 guided missile 导弹28 gyro ['dʒaɪrəʊ] n.陀螺仪28 handoff [hændɒf] n. 越区切换21 handset ['hænset] n. 手持设备10 Harvard architecture 哈佛结构17 HDL abbr. Hardware Description Language 硬件描述语言13, 15 HDMI abbr. High-Definition Multimedia Interface 高清晰度多媒体接口12 headroom [ˈhedˌruːm] n.净空，活动空间7 heatsink [ˈhiːt ˈsɪŋk] n.散热片7, 12 high impedance 高阻15 high-powered [ˌhaɪ ˈpaʊəd] adj. 大功率的10 histogram ['hɪstəgræm] n.直方图22 histogram equalization 直方图均衡22 Huffman encoding 哈夫曼编码22第 6 页共15 页IIC abbr. integrated circuit 集成电路1, 4 IDE [aɪd] abbr. Integrated Drive Electronics 集成驱动器电路12 IEEE abbr. Institute of Electrical and Electronic Engineers 电气与电子工程师学会15 image contrast 图像对比度22 image sensor 图像传感器23 imaginary part 虚部5 impedance [ɪmˈpiːdəns] n. 阻抗5, 15, 30 inbound ['ɪnbaʊnd] adj.输入的10 inductance [ɪnˈdʌktəns] n. 电感（值）5 inductive [ɪnˈdʌktɪv] adj.感性的9 inductor [ɪnˈdʌktə] n. 电感器5, 7 infinity [ɪnˈfɪnəti] n.无穷大5in-phase 同相28 input offset voltage 输入偏置电压4 instruction [ɪnˈstrʌkʃən] n. 指令3 instruction decoder 地址译码器3 instrumentation [ˌɪnstrʊmen'teɪʃən] n.仪器28 insulate [ˈɪnsjuleɪt] vt.绝缘1 integrated development tool 集成开发工具27集成；；积分4, 7 integration [ˌɪntəˈɡreɪʃən] n. 集成integrator [ˈɪntɪgreɪtə] n. 积分器5 interconnect [ˌɪntəkəˈnekt] n. 互连9 interface [ˈɪntəˌfeɪs] n. 接口电路2, 4 interference [ɪntə'fɪərəns] n. 干扰10 interpolation [ɪntɜːpəʊ'leɪʃən] n.插值6 interrupt latency 中断等待时间27 interval [ˈɪntəvəl] n. 间歇2IP abbr. Intellectual Property 知识产权25 IP abbr. Internet Protocol 互联网协议21 IP packet IP分组21 ISO abbr. International Organization for Standardization 国际标准化组织26 ISP abbr. in-system programmable 在系统可编程14 ISR abbr. Interrupt Service Routine 中断服务程序27Jjack [dʒæk] n.音频插口12 jitter ['dʒɪtə] n.抖动28 jitters [ˈdʒɪtəz] n. 时钟抖动8 JPEG abbr. Joint Photographic Experts Group 联合图象专家组23 JTAG abbr. Joint Test Action Group 联合测试行动组25Kkernel ['kɜːnəl] n.内核程序27 lagging [ˈlæɡɪŋ] adj.滞后的8第7 页共15 页laptop ['læptɒp] n.膝上型轻便电脑12 laser ['leɪzə] abbr. light amplification by stimulated emission of radiation 激光19 latency ['leɪtənsɪ] n. 反应时间27 LLCD abbr. Liquid Crystal Display 液晶显示器23 lead [liːd] n.引线9 leading [ˈliːdɪŋ] adj.超前的8 leakage [ˈli:kɪdʒ] n.泄露2 learning curve 学习曲线15 licensing agreement 专利使用权转让协定17 linear ramp 线性斜坡5 linear regulator 线性稳压器7 linearity [ˌlɪnɪˈærɪtɪ] n. 线性28 lithographic [ˌlɪθəˈɡræfɪk] adj. 平版印刷的2 load [ləʊd] n. 负载7 load current 负载电流7 loading ['ləʊdɪŋ] n.负载30 log [lɒɡ] abbr. logarithm [ˈlɒɡərɪðəm] 对数4 logic [ˈlɒdʒɪk] n. 逻辑1 logic analyzer 逻辑分析仪28 logical channel 逻辑通道21 look-up table 查找表2, 19 loop filter 环路滤波器8 looping scheme 循环机制17 loss [lɒs] n. 损耗7 LP abbr. Long Playing 密纹唱片13 LSI abbr. large-scale integration 大规模集成1 luminance ['luːmɪnəns] n.亮度24 MMAC abbr. Multiplication and Accumulation 乘法累加运算18 machine instruction 机器指令3 magnetic [mæɡˈnetɪk] adj.有磁性的2, 7 magnitude spectrum 幅度谱22 mantissa [mæn'tɪsə ] n.尾数17 m-commerce 移动商务21 memory [ˈmeməri] n.存储器2 memory location 存储器位置3 metallization [ˌmetəlaɪ'zeɪʃən] n.金属化13 microcell [ˈmaɪkrəʊˌsel] n.微蜂窝10 microcontroller [maɪkrəkən'trəʊlə] n.微控器2 micron [ˈmaɪkrɒn] n. 微米；10-6米3 microphone ['maɪkrəfəʊn] n.扩音器18 microprocessor [maɪkrəʊ'prəʊsesə] n. 微处理器1, 3第8 页共15 页miniaturization [ˈmɪnɪətʃəˌraɪˈzeɪʃən] n. 缩微化1 MIPS [mɪps] abbr. Million Instructions Per Second 每秒百万条指令数3, 18 MMX abbr. Multi-Media Extension多媒体增强指令集17 mnemonics [nɪ'mɒnɪks] n. 助记符30 modem ['məʊdem] n.调制解调器12 monotonicity [mɒnətəˈnɪsɪtɪ] n. 单调性28µP abbr. microprocessor 微处理器14 MPEG abbr. Motion Picture Experts Group 运动图象专家组20 MRI abbr. Magnetic Resonance Imaging 核磁共振成像22 MSC abbr. Mobile Switching Center 移动电话交换中心10 MSPS abbr. million samples per second 每秒百万样本数6 MTSO abbr. Mobile Telephone Switching Office 移动电话交换局10 multiframe n.复帧11 multiplexer ['mʌltɪˌpleksə] n.多路复用器28 multiplication [ˌmʌltəplɪˈkeɪʃən] n. 乘法3 multiplier [ˈmʌltɪˌplaɪə] n.乘法器3, 17 Nnetwork operator 网络运营商21 network router 网络路由器2 next state 次态13 noise shaping 噪声整形6 nominal [ˈnɒmɪnəl] adj.标称的8 NRE abbr. nonrecurring engineering 一次性工程14 NTSC abbr. National Television Systems Committee 国家电视系统委员会24 Nyquist theorem 奈奎斯特定理16 Oobject recognition 目标识别22 odd field 奇数场24 one's complement 二进制反码11 op amp abbr. operational amplifier 运算放大器4, 18 opcode [ˈɒpkəʊd] abbr. operation code 操作码3 open loop gain 开环增益4 operand ['ɒpərænd] n.操作数26 operating system 操作系统3 optical [ˈɒptɪkəl] adj.光学的2 order of magnitude 数量级10 OS abbr. Operating System 操作系统12 oscillation [ˌɒsɪˈleɪʃən] n. 振荡4 oscillator [ˈɒsɪˌleɪtə] n.振荡器8 oscilloscope [əˈsɪləˌskəʊp] n.示波器20, 28 OTP abbr. one-time programmable 一次性编程14 outbound ['aʊtbaʊnd] adj.输出的10 outlet ['aʊtlet] n.电源插座12第9 页共15 页overload [ˌəʊvəˈləʊd] n.过载10 overvoltage [ˈəʊvəˈvəʊltɪdʒ] n.过压7Ppackage ['pækɪdʒ] n.封装形式; 程序包4, 15 packet ['pækɪt] n.信息分组21 packet switching 分组交换10 pad [pæd] n.焊盘9 PAL [pæl] abbr. Phase Alternation by Line 逐行倒相24 parallel [ˈpærəlel] adj.并联的8 parallel architecture 并行结构17 parallel resonant 并联谐振8 parallelism ['pærəlelɪzəm] n. 并行度14 passband ['pæsbænd] n.通带5, 18 passive [ˈpæsɪv] adj.无源的4, 7, 18 payload [ˈpeɪˌləʊd] n.有效载荷11 PCB abbr. printed circuit board 印制电路板9, 18 PCM abbr. Pulse Code Modulation 脉冲编码调制11 PCS abbr. Personal Communication Service 个人通信业务11 perceptual coding 知觉编码20 performance specification 性能指标6 peripheral [pə'rɪfərəl] n.外设12 PGA abbr. Programmable Gain Amplifier 可编程增益放大器18 phase spectrum 相位谱22 phone service 电话业务4 piezoelectric [ɪˈlektrɪk] adj.压电的piezoelectric [paɪzəʊɪˈlektrɪk] adj.压电的8, 18 piezoelectric crystal 压电晶体18 pipelining [ˈpaɪpˌlaɪnɪŋ] n. 流水线技术3 pixel ['pɪksəl] n.像素22 PLA abbr. Programmable Logic Array 可编程逻辑阵列13 playback ['pleɪbæk] n.重放19 PLCC abbr. plastic leadless chip carrier 塑料无引线芯片承载封装9 PLD abbr. Programmable Logic Device 可编程逻辑器件13, 14, 15 PLL abbr. phase locked loop 锁相环8 pointer ['pɒɪntə] n.指针26 pole [pəʊl] n. 极点5 pole [pəʊl] n.极点18 POST [pəʊst] abbr. power-on self-test 开机自检12 power [ˈpaʊə] n. 功率1 power consumption 功耗1, 6 power dissipation 功耗16 power loss 功率损耗9 power supply voltage 电源电压4第10 页共15 页power supply 电源12 ppm abbr. parts per million 百万分之一8 predictive encoding 预测编码11 present state 现态13 price/performance ratio 性价比16 probe [prəʊb] n.探头30 processing gain 处理增益6 program call 程序调用26 program counter 程序计数器3, 26 programmable [ˈprəʊɡræməbl] adj.可编程的2 propagate [ˈprɒpəɡeɪt] vi.传播8 propagation delay 传输延迟8, 30 prototype ['prəʊtətaɪp] n. 样机14 PSTN abbr. Public Switched Telephone Network 公共交换电话网10 psychoacoustics [ˌsaɪkəʊə'kuːstɪks] n.心理声学20 PTT abbr. Post Telephone and Telegraph Administration 邮政电话电报管理局10 pulse [pʌls] n.脉冲3 pulse width 脉冲宽度30 QoS abbr. quality-of-service 服务质量21 quality factor 品质因数5 quantization error (noise) 量化误差（噪声）6 quantization level 量化电平16 quartz [kwɒts] n. 石英8 RRAM [ræm] abbr. random-access memory 随机存取存储器3, 12 random noise 随机噪声11 raster ['ræstə] n.光栅29 RC abbr. Reconfigurable Computing 可重配计算14 RC abbr. resistor capacitor 电阻电容5 RCA abbr. Radio Corporation of America 美国无线电公司12 real part 实部5 real time 实时16 rectifier [ˈrektɪfaɪə]n.整流器7 redundancy [rɪ'dʌndənsɪ] n.冗余20 Reed-Solomon coding 里德-索罗蒙编码（RS编码）19 reference voltage 参考电压6 refresh [rɪˈfreʃ] vt.刷新2 register [ˈredʒɪstə] n.寄存器2 regulator [ˈreɡjʊˌleɪtə] n.稳压器7 resistor [rɪˈzɪstə] n. 电阻器6 resolution [rezə'luːʃən] n.分辨率6, 23 resolution function 判决函数26 resonant [ˈrezənənt] adj. 谐振的8第11 页共15 页resonating frequency 谐振频率8 ribbon cable 带状电缆；扁平柔性电缆9 ringing [ˈrɪŋɪŋ] n. 振铃振荡5 ripple ['rɪpl] n.波纹18 RISC abbr. Reduced Instruction-Set Computer 精简指令集计算机25 roll off 滚降18 ROM [rɒm] abbr. read-only memory 只读存储器3 router [ˈruːtə] n. 路由器2 rpm abbr. revolutions per minute 每分钟转数19 RTL abbr. Register Transfer Level 寄存器传输级13 RTOS abbr. Real-Time Operating System 实时操作系统26, 27 run-length encoding 行程编码22Ssample and hold circuit 采样保持电路16 sampling interval 采样间隔16 sampling rate 采样率6 SATA abbr.. Serial Advanced Technology Attachment 串行高级技术附件12 scanning velocity 扫描速度19 scheduler ['ʃedjuːələ] n. 调度程序27 schematic [skiːˈmætɪk] n.原理图7, 13 scientific notation 科学记数法17 SCR abbr. silicon controlled rectifier 可控硅整流器7 SDR abbr. Software-defined Radio 软件无线电14 SECAM ['siːkæm] abbr. SEquential Couleur Avec Memoire 顺序与存储彩色电视系统24 selective [sɪˈlektɪv] adj. 选择性的5 semiconductor [ˌsemɪkənˈdʌktə] n. 半导体1, 7 sequence[ˈsiːkwəns] n. 序列3 sequential [sɪ'kwenʃəl] adj.时序的13 series [ˈsɪəriːz] n. 串联7, 8 series resonant 串联谐振8 shade [ʃeɪd] n.明暗度22 shielding [ˈʃiːldɪŋ] n.屏蔽9 shifter ['ʃɪftə] n. 移位器17 signal conditioning 信号调理4 signal conditioning circuit 信号调理电路18 signal integrity 信号完整性9 signal-to-noise ratio 信噪比16, 20 silicon [ˈsɪlɪkən] n.硅1 simplex ['sɪmpleks] n.单工，单向通信11 simulation [ˌsɪmjʊˈleɪʃən] n.模拟9, 13, 16 sinc correction 抽样函数校正19 sine wave 正弦波6 single-shot 单脉冲29第12 页共15 页skew[skjuː] n.相位偏移8 slew [sluː] n. 摆率8 slope [sləʊp] n. 斜率5 smallest resolvable difference 最小可分辨值17 smoothing ['smu:ðiŋ] n. 平滑（滤波）16 SMS abbr. Short Message Service 短信业务21 SNR abbr. signal to noise ratio 信噪比6 SoC abbr. System-on-Chip 片上系统14 socket [ˈsɒkɪt] n.插座9 soldering [ˈsɒldərɪŋ] n.焊接9 solid state 固态1 sound card 声卡20 source [sɔːs] n. 信号源2 source and load impedances 源阻抗和负载阻抗9 source code 源代码27 spec [spek] abbr. specification 性能指标; 规格8, 12 specification [ˌspesɪfɪˈkeɪʃən] n. 性能指标; 规格4 spectral inversion 频谱反转16 spectral resolution 频率分辨率20 spectrum ['spektrəm] n.频谱6, 16 spread spectrum communication 扩频通信11 SPS abbr. Sample Per Second 每秒样本数18 SRAM abbr. Static Random Access Memory 静态随机存取存储器2 stability [stə'bɪlɪti] n. 稳定性4 stack [stæk] n.堆栈26 startup cost 启动成本27 state machine 状态机14 statement ['steɪtmənt] n.语句15 steady state 稳态8 step function 阶跃函数5 stimuli ['stɪmjʊlaɪ] n.激励源15 stimulus signal 激励信号28 stopband ['stɒpbænd] n.阻带18 strain gage 应力计18 string [strɪŋ] n. 字符串26 structure ['strʌktʃə] n. 结构体26 subassembly [ˌsʌbəˈsembli] n.部件9 subsystem ['sʌbsɪstəm] n.子系统28 subtraction [səbˈtrækʃən] n. 减法3 SUT abbr. System Under Test 被测系统30 switch [swɪtʃ] n. 开关1 switched-capacitor filter 开关电容滤波器5 switching [ˈswɪtʃɪŋ] n.交换，切换7第13 页共15 页synchronization [ˌsɪŋkrənaɪ'zeɪʃən] n.同步11, 21 synchronous ['sɪŋkrənəs] adj.同步的13 synthesis ['sɪnθɪsɪs] n. 综合13 synthesizer [ˈsɪnθəsaɪzə] n.合成器8 system call 系统调用27 TTCXO abbr. temperature compensated crystal oscillator 温度补偿晶体振荡器8 TDM abbr. Time Division Multiplexing 时分复用11 telepresence [ˈtelɪˌprezəns] n. 远程在位21 template ['templeɪt] n. 模板26 temporal masking 暂时掩蔽20 termination [ˌtɜːmɪˈneɪʃən] n.端接9 termination characteristics 端接特性9 test bench 测试台15 test register 测试寄存器3 thermocouple [θɜːməʊˈkʌpəl] n.热电偶18 third party developer 第三方开发商17 thread [θred] n.线程26 TIFF abbr. Tagged Image File Format 标签图像文件格式23 time base 时基30 time constant 时间常数5 time slot 时隙21 time to market 上市时间16 timing [ˈtaɪmɪŋ] n.时序9, 15 timing diagram 时序图30 top-down approach “自顶而下”设计法15 transducer [trænzˈdjuːsə] n. 传感器4, 29 transfer function 传递函数4, 5 transient ['trænzɪənt] n.暂态过程28 transient response 暂态响应5 transistor [trænˈsɪstə] n. 晶体管1 transmission bandwidth 传输带宽20 transmission power 发射功率11 trench capacitor 沟道式电容器2 trigger ['trɪgə] vt.触发13 truth table 真值表26 TTL abbr. transisitor-transisitor logic晶体管晶体管逻辑9 tuning ['tjuːnɪŋ] n.调谐8 type conversion 类型转换15 Uupstream ['ʌpstriːm] n.上行比特流11 USB abbr. Universal Serial Bus 通用串行总线12 UUT abbr. Unit Under Test 被测单元28第14 页共15 页UV abbr. ultraviolet 紫外线2 Vvacuum tube 真空管4 VCO abbr. voltage controlled oscillator 压控振荡器8 vector [ˈvektə] n. 向量5 vertical resolution 垂直分辨率28 VGA abbr. Video Graphics Array 视频图形阵列12 VHS abbr. Video Home System 家用录像系统21 video conference 视频会议21 viewfinder ['vjuːfaɪndə] n. 取景器23 virtual memory 虚拟内存3 VLSI abbr. very large-scale integration 超大规模集成1 vocoder ['vəʊˌkəʊdə ] n.声码器11 volt[vəʊlt] n. 伏特8 voltage [ˈvəʊltɪdʒ] n. 电压；伏特数7 voltage reference 参考电压18 voltage swing 电压摆幅8 volume [ˈvɒljuːm] n. 音量4 Von Neumann architecture 冯·诺依曼结构17 VSWR abbr. voltage standing wave ratio 电压驻波比9 Wwatt [wɒt] n.瓦特10 waveform [ˈweɪvˌfɔːm] n.信号波形7 waveform coding 波形编码20 webcam ['webkæm] n.网络摄像头12 wideband ['waɪd'bænd] adj.宽频带的21 wild card 通配符15 wireless infrastructure 无线基础设施16 XYZzero order hold 零阶保持器16第15 页共15 页。
电子工程专业英语词汇(整理版)
电子工程专业英语词汇(整理版)主要内容：1. 电子工程概述2. 电子工程专业词汇1. 电子工程概述电子工程是一门研究电子器件与电子电路的学科，它涵盖了电子技术的各个方面，包括电路设计、电子设备制造、电子材料、信号处理和通信系统等。
2. 电子工程专业词汇- 电子器件：electronic device- 电路设计：circuit design- 电子设备制造：electronic equipment manufacturing- 电子材料：electronic materials- 信号处理：signal processing- 微电子技术：microelectronics- 集成电路：integrated circuit- 数字信号处理：digital signal processing- 工程实践：engineering practice- 控制系统：control system- 电源管理：power management- 传感器技术：sensor technology- 电磁场理论：electromagnetic field theory- 光电子技术：optoelectronic technology- 电磁波传播：electromagnetic wave propagation请注意：以上词汇仅为参考，具体的专业词汇会根据不同的学校和教学内容有所不同。
建议在研究过程中参考教材和课堂用词，以获取最准确的词汇。
总结：本文档整理了电子工程专业的相关词汇，帮助读者快速了解电子工程领域的专业术语。
但是请注意，根据不同的学校和教学内容，词汇表可能会有所不同，建议读者在学习过程中参考相关教材和课堂用词，以获得准确的词汇理解。
电子信息工程专业英语词汇 专外1
专外VLSI Very large scale integrated circuit 超大规模集成电路IC Integrated circuit 集成电路LSI Large scale integrated 大规模集成MOS Metal-Oxide-Semiconduter金属氧化物半导体CMOS Complementary Metal-Oxide-Semiconduter互补金属氧化物半导体ECL Emitter Coupled Logic射级耦合逻辑UV ultraviolet 紫外线MIPS Million Instruction Per Second百万条指令每秒ALU Arithmetic Logic Unit算术逻辑单元BIOS Base Input Output System基本输入输出系统OA Operation Amplifiers运算放大器GBW Gain*Bandwidth增益带宽积DC Direct Current直流电AC Alternating Current交流电GSM Global System of Mobile communication全球移动通信系统SCR Silicon Controlled Rectifier可控硅整流器TCXO Tempretuer Compensated Crystal Oscillator温度补偿晶体振荡器VCO Voltage Controlled Oscillator压控振荡器PLL Phase Locked Loop锁相环VSWR Voltage Standing Wave Ratio电压驻波比FCC Fedal Communications Commission联邦通信委员会PTT Post Telephone and Telegraph Administration邮电管理局MTSO Mobile Telephone Switching Office移动电话交换局MSC Mobile Switching Center移动交换中心PSTN Public Switching Telephone Network公共交换电话网TDM Time Division Multiplexing时分复用PCM Pulse code Modulation脉冲编码调制PCS Personal Communication Service个人通信业务FDM Frequency Division Multiplexing频分复用CD Compact disc光盘CAD Computer Aided Design计算机辅助设计EDA Electronic Design Automation电子设计自动化HDL Hardware Description Language硬件描述语言ASIC Application Specific Integration Circuit专用集成电路PLD Programmable Logic Device可编程逻辑器件PLA Programmable Logic Array可编程逻辑阵列FPGA Filed Programmable Gate Array现场可编程门阵列RTL Register Transfer level寄存器传递级OTP One-time Programmable一次可编程ISP In-system Programmable在系统可编程ASSP Application-specific Standard Parts专用标准器件SPLD Simple Programmable Logic Device简单可编程逻辑器件CPLD Complex Programmable Logic Device复杂可编程逻辑器件NRE Nonrecurring Engineering一次性工程SDR Software-Defined Radios软件无线电SP Digital Signal Processor数字信号处理器SoC System-on-ChipRC Reconfigurable Computing可重配计算IEEE Institute of Electrical and Electronics Engineers电器与电子工程师学会EPROM Electrically Erasable Programmable Read-Only Memory电可擦除可编程只读存储器DRAM Dynamic Random Access Memory动态随机存取存储器SRAM Static Random Access Memory静态随机存取存储器DAC Digital-to-Analog Converter数字模拟转换器ROM Read Only Memory只读存储器占空比Duty cycle真空电子管Vamcuum tube触发器flip flop品质因数quality factor过采样over-sampling复平面complex plane低通滤波器Low-pass filter软盘Floppy disk地址指针Address pointer接口电路Interface circuitry沟道电容器Trench capacitor三态缓冲器Tri-state buffer引导扇区Boot sector汇编语言Assembly language操作码Operating code传输函数Transfer function数据手册Data sheet入厂检查Incoming inspection线路驱动器line driver电平移动器Level shifter信号调节器Signal conditioner电流源Current source电压源Voltage source一阶滤波First-Order Filters二阶低通滤波器Second-order Low-Pass Filters 复频率变量complex-frequency variable 角频率angular frequency暂态响应transient response阶跃函数step function参考电压reference voltage电源power supply线性稳压器liner regulator负载电流load current反向偏压back bias晶体振荡器crystal oscillator补偿振荡器compensated Oscillator串联谐振series resonant并联谐振parallel resonant谐振频率resonanting frequency反馈元件feedback element鉴相器phase detector鉴频器frequency detector频率合成器frequency synthesizer电荷泵charge pump环路滤波器loop filter死区deadband传播延迟propagation delay时钟抖动clock jitter传输线transmission line电压反射voltage reflection功率损耗power loss接触电阻contact resistance频率响应frequency response电流current flow边缘卡edge card母板motherboard子板daughter board扁平电缆ribbon cable分组交换packet switching无绳电话cordless phone基站base station拨号音dial tone频率重用frequency reuse端局end office增量调制delta modulation预测编码predictive encoding保护时间guard time纠错error correction频率冲突frequency conflict总速率gross rate编码理论coding theory随机噪声random noise二进制反码one’complement扩频通信spread spectrum communication 微弱信号weak signal发射功率transmission power嵌入式系统embedded system模块（构件）building block金属互联metal interconnect设计流程design flow现状present state状态机state machine次态next state数据处理data processing胶连逻辑glue logic测试台test bench高阻high impedance类型转换type conversion学习曲线learning curve。
专业英语翻译之数字信号处理
Signal processingSignal processing is an area of electrical engineering and applied mathematics that deals with operations on or analysis of signals, in either discrete or continuous time, to perform useful operations on those signals. Signals of interest can include sound, images, time-varying measurement values and sensor data, for example biological data such as electrocardiograms, control system signals, telecommunication transmission signals such as radio signals, and many others. Signals are analog or digital electrical representations of time-varying or spatial-varying physical quantities. In the context of signal processing, arbitrary binary data streams and on-off signalling are not considered as signals, but only analog and digital signals that are representations of analog physical quantities.HistoryAccording to Alan V. Oppenheim and Ronald W. Schafer, the principles of signal processing can be found in the classical numerical analysis techniques of the 17th century. They further state that the "digitalization" or digital refinement of these techniques can be found in the digital control systems of the 1940s and 1950s.[2]Categories of signal processingAnalog signal processingAnalog signal processing is for signals that have not been digitized, as in classical radio, telephone, radar, and television systems. This involves linear electronic circuits such as passive filters, active filters, additive mixers, integrators and delay lines. It also involves non-linear circuits such ascompandors, multiplicators (frequency mixers and voltage-controlled amplifiers), voltage-controlled filters, voltage-controlled oscillators andphase-locked loops.Discrete time signal processingDiscrete time signal processing is for sampled signals that are considered as defined only at discrete points in time, and as such are quantized in time, but not in magnitude.Analog discrete-time signal processing is a technology based on electronic devices such as sample and hold circuits, analog time-division multiplexers, analog delay lines and analog feedback shift registers. This technology was a predecessor of digital signal processing (see below), and is still used in advanced processing of gigahertz signals.The concept of discrete-time signal processing also refers to a theoretical discipline that establishes a mathematical basis for digital signal processing, without taking quantization error into consideration.Digital signal processingDigital signal processing is for signals that have been digitized. Processing is done by general-purpose computers or by digital circuits such as ASICs, field-programmable gate arrays or specialized digital signal processors (DSP chips). Typical arithmetical operations include fixed-point and floating-point, real-valued and complex-valued, multiplication and addition. Other typical operations supported by the hardware are circular buffers and look-up tables. Examples of algorithms are the Fast Fourier transform (FFT), finite impulseresponse (FIR) filter, Infinite impulse response (IIR) filter, and adaptive filters such as the Wiener and Kalman filters1.Digital signal processingDigital signal processing (DSP) is concerned with the representation of signals by a sequence of numbers or symbols and the processing of these signals. Digital signal processing and analog signal processing are subfields of signal processing. DSP includes subfields like: audio and speech signal processing, sonar and radar signal processing, sensor array processing, spectral estimation, statistical signal processing, digital image processing, signal processing for communications, control of systems, biomedical signal processing, seismic data processing, etc.The goal of DSP is usually to measure, filter and/or compress continuousreal-world analog signals. The first step is usually to convert the signal from an analog to a digital form, by sampling it using an analog-to-digital converter (ADC), which turns the analog signal into a stream of numbers. However, often, the required output signal is another analog output signal, which requires a digital-to-analog converter (DAC). Even if this process is more complex than analog processing and has a discrete value range, the application of computational power to digital signal processing allows for many advantages over analog processing in many applications, such as error detection and correction in transmission as well as data compression.[1]DSP algorithms have long been run on standard computers, on specialized processors called digital signal processors (DSPs), or on purpose-built hardware such as application-specific integrated circuit (ASICs). Today thereare additional technologies used for digital signal processing including more powerful general purpose microprocessors, field-programmable gate arrays (FPGAs), digital signal controllers (mostly for industrial apps such as motor control), and stream processors, among others.[2]2. DSP domainsIn DSP, engineers usually study digital signals in one of the following domains: time domain (one-dimensional signals), spatial domain (multidimensional signals), frequency domain, autocorrelation domain, and wavelet domains. They choose the domain in which to process a signal by making an informed guess (or by trying different possibilities) as to which domain best represents the essential characteristics of the signal. A sequence of samples from a measuring device produces a time or spatial domain representation, whereas a discrete Fourier transform produces the frequency domain information, that is the frequency spectrum. Autocorrelation is defined as the cross-correlation of the signal with itself over varying intervals of time or space.3. Signal samplingMain article: Sampling (signal processing)With the increasing use of computers the usage of and need for digital signal processing has increased. In order to use an analog signal on a computer it must be digitized with an analog-to-digital converter. Sampling is usually carried out in two stages, discretization and quantization. In the discretization stage, the space of signals is partitioned into equivalence classes and quantization is carried out by replacing the signal with representative signal of the corresponding equivalence class. In the quantization stage the representative signal values are approximated by values from a finite set.The Nyquist–Shannon sampling theorem states that a signal can be exactly reconstructed from its samples if the sampling frequency is greater than twice the highest frequency of the signal; but requires an infinite number of samples . In practice, the sampling frequency is often significantly more than twice that required by the signal's limited bandwidth.A digital-to-analog converter is used to convert the digital signal back to analog. The use of a digital computer is a key ingredient in digital control systems. 4. Time and space domainsMain article: Time domainThe most common processing approach in the time or space domain is enhancement of the input signal through a method called filtering. Digital filtering generally consists of some linear transformation of a number of surrounding samples around the current sample of the input or output signal. There are various ways to characterize filters; for example:• A "linear" filter is a linear transformation of input samples; other filters are "non-linear". Linear filters satisfy the superposition condition, i.e. if an input is a weighted linear combination of different signals, the output is an equally weighted linear combination of the corresponding output signals.• A "causal" filter uses only previous samples of the input or output signals; while a "non-causal" filter uses future input samples. A non-causal filter can usually be changed into a causal filter by adding a delay to it.• A "time-invariant" filter has constant properties over time; other filters such as adaptive filters change in time.•Some filters are "stable", others are "unstable". A stable filter produces an output that converges to a constant value with time, or remains bounded within a finite interval. An unstable filter can produce an output that grows without bounds, with bounded or even zero input.• A "finite impulse response" (FIR) filter uses only the input signals, while an "infinite impulse response" filter (IIR) uses both the input signal and previous samples ofthe output signal. FIR filters are always stable, while IIR filters may be unstable.Filters can be represented by block diagrams which can then be used to derive a sample processing algorithm to implement the filter using hardware instructions. A filter may also be described as a difference equation, a collection of zeroes and poles or, if it is an FIR filter, an impulse response or step response.The output of a digital filter to any given input may be calculated by convolving the input signal with the impulse response.5. Frequency domainMain article: Frequency domainSignals are converted from time or space domain to the frequency domain usually through the Fourier transform. The Fourier transform converts the signal information to a magnitude and phase component of each frequency. Often the Fourier transform is converted to the power spectrum, which is the magnitude of each frequency component squared.The most common purpose for analysis of signals in the frequency domain is analysis of signal properties. The engineer can study the spectrum todetermine which frequencies are present in the input signal and which are missing.In addition to frequency information, phase information is often needed. This can be obtained from the Fourier transform. With some applications, how the phase varies with frequency can be a significant consideration.Filtering, particularly in non-realtime work can also be achieved by converting to the frequency domain, applying the filter and then converting back to the time domain. This is a fast, O(n log n) operation, and can give essentially any filter shape including excellent approximations to brickwall filters.There are some commonly used frequency domain transformations. For example, the cepstrum converts a signal to the frequency domain through Fourier transform, takes the logarithm, then applies another Fourier transform. This emphasizes the frequency components with smaller magnitude while retaining the order of magnitudes of frequency components.Frequency domain analysis is also called spectrum- or spectral analysis.6. Z-domain analysisWhereas analog filters are usually analysed on the s-plane; digital filters are analysed on the z-plane or z-domain in terms of z-transforms.Most filters can be described in Z-domain (a complex number superset of the frequency domain) by their transfer functions. A filter may be analysed in the z-domain by its characteristic collection of zeroes and poles.7. ApplicationsThe main applications of DSP are audio signal processing, audio compression, digital image processing, video compression, speech processing, speech recognition, digital communications, RADAR, SONAR, seismology, and biomedicine. Specific examples are speech compression and transmission in digital mobile phones, room matching equalization of sound in Hifi and sound reinforcement applications, weather forecasting, economic forecasting, seismic data processing, analysis and control of industrial processes, computer-generated animations in movies, medical imaging such as CAT scans and MRI, MP3 compression, image manipulation, high fidelity loudspeaker crossovers and equalization, and audio effects for use with electric guitar amplifiers8. ImplementationDigital signal processing is often implemented using specialised microprocessors such as the DSP56000, the TMS320, or the SHARC. These often process data using fixed-point arithmetic, although some versions are available which use floating point arithmetic and are more powerful. For faster applications FPGAs[3] might be used. Beginning in 2007, multicore implementations of DSPs have started to emerge from companies including Freescale and Stream Processors, Inc. For faster applications with vast usage, ASICs might be designed specifically. For slow applications, a traditional slower processor such as a microcontroller may be adequate. Also a growing number of DSP applications are now being implemented on Embedded Systems using powerful PCs with a Multi-core processor.（翻译）信号处理信号处理是电气工程与应用数学领域，在离散的或连续时间域处理和分析信号，以对这些信号进行所需的有用的处理。
电子信息专业英语之数字信号处理篇
There are many types of binary coding. In this section, we discuss the simplest one, called sign-and-magnitude coding（符号及值编码）. Consider the following sequences of a i :
1 1 0 0 1 1 (1 21 0 20 0 21 1 22 1 23 ) 2.375
剩下的5个比特代表该数的大小。例如，…
The left-most bit, excluding the sign bit, is the most significant bit (MSB) and the right-most bit is the least significant bit (LSB). If we use 10 bits to represent the decimal（小数的） part of a number, then the LSB represents = 1/1024 = 0.0009765, which yields(产生) the quantization step（这即是量 化阶）. 除符号位外最左边的位是最高有效位，而最右边的 位是最低有效位。如果用10个比特表示一个数的小 数部分，最低位表示为＝1/1024 = 0.0009765, 这即是量化阶。 exclude(v.): 把...排除在外
This type of representation, however, is not used because it is susceptible to（易受影 响的） noise, shifting of power supply, and any other disturbances. 然而并未采用这种表示法，因为它易受到噪 声、电源起伏及其它干扰的影响。
电子信息工程专业英语翻译清华出版社English for IT and EE-09
定理规定：采样频率必须 定理规定： 大于两倍的信号带宽
信息科学与电子工程专业英语
Part I
Digital Signal Processing
New Words
sub-field 分领域，子领域 sub分领域， sensor array 传感器阵列 algorithm 算法 purposepurpose-designed 针对目的设计的 integrated circuits 集成电路 wavelet 小波 informed 有知识的，有见闻的 有知识的， crosscross-correlation 互相关 discretization 离散化 partition 分割，分区 分割， sonar 声呐 biomedical 生物特征的 abbreviate 缩写，缩略 缩写， applicationapplication-specific 面向应用的 autocorrelation 自相关 baseband 基带 spatial domain 空间域 interval 间隔 quantization 量化 finite set 有限的集
当灵活性和快速开发比大批量生产的 成本更重要时，DSP算法也可以用现 成本更重要时，DSP算法也可以用现 场可编程门阵列来实现。 场可编程门阵列来实现。
9
4 DSP domains
In DSP, engineers usually study digital signals in one of the following domains: time domain (one-dimensional signals), (onespatial domain (multidimensional signals), frequency domain, autocorrelation domain, and wavelet domains. They choose the domain in which to process a signal by making an informed guess (or by trying different possibilities) as to which domain best represents the essential characteristics of the signal.3 他们按某些依据来猜测（或试验不同的可能 他们按某些依据来猜测（ 性）那一个域能够最好地表示信号的本质特 性来选择在其中进行信号处理的域。 性来选择在其中进行信号处理的域。
电子信息工程专业英语学习方法总结
电子信息工程专业英语，听起来很屌，其实，管你是六级早已不在话下，或是至今还在为四级奋斗。
如果你啃下了以下这些最基本的“砖头”，加上你高中的阅读水平，也就是那样。
以下这些，是敝人费了几个小时，按任治刚《电子信息工程专业英语教程》章节乱序编辑整理的词汇及常用缩写短语。
以便自己在今后的应用中查阅，当然，若是不嫌弃，可以拷去参考学习。
Unit 1 Electronic Devices 电子设备1.mechanical 机械的optical 眼的、视力的、光学的magnetic 磁的、有吸引力的ferroelectric 铁电的macrofunction 宏功能2. volitle 易失的、挥发的flip-flop 双稳态多谢振荡器、触发器interface circuitry 接口电路bipolar 双极的MOS：Metal Oxide Semiconductor 金属氧化物半导体3．CMOS:Complemently –MOS 互补金属氧化物半导体boast 以有---而自豪，为---而骄傲hybrid 混合的，混合物Emitter Couple Logic 射极耦合逻辑comparator 比较器4.leakage 泄漏capacitor=capactator 电容器whereas 然而、反之、鉴于trench capacitor 沟道式电容器aluminum 铝5.lithograph 平版印刷的、平版的ultraviolet 紫外的transistor 晶体的in motion 在运动中discrete 离散的、不连续的6.insulate 使绝缘、隔离manipulate 操作、使用miniaturization 小型化fabricate 制作、构成splash 飞溅、斑点7．make a splash 引起轰动、获得成功MIPS:Millon Instruction Per Second 每秒每百万条指令micron 微米substraction 减法latch 锁存器、锁存8.disconnect 拆开、分离opcode 操作码pipeline 管道技术permanent 永久的activate 刺激、有活力Unit 2 Electronic circuit 电子电路1. Drift 漂移Undependent 不可靠的Perceptive 有知觉的、可理解的Bulkly 体积大的cubic 立体的2.octal 与八相关的——八面的、八进制的、八角的level shifter 电平转移器actuator 传动器current source 电流源voltage source 电压源3.predominant 卓越的、有影响的line driver 线路激励器adverse 不利的、相反的rating 额定值GBW:Gain band width增益带宽积4.oscillalator 振荡器passive 被动的、无源的integrator 积分器intuitively 直觉的line ramp 线性倾斜5.transfer function 转移函数denominator 分母complex plane 复平面Laplace transform 拉普拉斯变换DC 直流电6.step function 阶跃函数first order 一阶cumbersome 麻烦的、笨重的cascade 级联origin 原点7.decaying-exponential response 衰减指数响应transient response 瞬态响应bode plot波特图formula 公式、规则slope 斜坡8.quality factor 品质因数conjugate 共轭的damping 阻尼、衰减flavor 风味、滋味exotic 特殊的、有异国情调的9.GSM：Global System for MobileCommunications 全球数字移动电话系统Decimation 十中抽一Successive approximation 逐次逼近Respectable 可敬的、体面的10.multipass 多通道的subrange 子区interpolate 内插Unit 3 Electronic System Equipments电子系统器件1.switching 开关，转接liner regulator 线性稳压器headroom 净空高度dissipate 耗散arena 竞技场、舞台2.heatsink 吸热设备uneconomical浪费的buck 消除、补偿series 串联的stepdown 逐级下降的3.inductor 电感器load current 负载电流conductivity 传导性failure condition 故障状态domino effect 多米诺效应4.step-up逐级上升rectifier 整流器back-bias 反偏电压crowbar 消弧电路、短路器boost 升压、放大5.topology 拓扑、布局fragile易坏的barrier 隔板、势垒schematic 原理图、示意图overvoltage 超电压、过电压6.dielectric电介质flux 流量biased 加偏压的flyback 回扫、逆行crystal 晶体的7.resonant 谐振的piezoelectric 压电的resonanting frequency谐振频率oven 恒温的subset子集8.encase 装入、包住akin 同族的tuning 调谐、调音phase detector 鉴相器lagging 滞后的9.leading 超前的charge pump 电荷泵loop filter 环路滤波器power-up上电deadband 死区10.gain in 在---方面增强popularity 普及、流行propagation 繁殖、传播increment 增重propagation delay 传播时延11.intrinsic 固有的extrinsic 外在的ambient 周围的、环境的duty-cycle占空比slew 摆动12.draw out 取出systematic 系统的、体系的termination 端接法power loss 功率损失contact resistance 接触电阻13.spacing 间隔capacitive 电容性的inductive 电感性的decibel 分贝feeding 馈给、馈电14.detrimental 有害的corrosion protection 防腐蚀backplane 底板lead 引线daughter board 子板bond 接头15.subassembly 部件、组件edge card 边缘卡pad 焊板far-end 远端intersperse 散布、点缀Unit 4 Electronic System 电子系统1.cordless 无绳的handset 电话听筒、手持机mandate 委托统治、委托管理fiasco 惨败humble 级别低的、质量不好的2.analogous 类似的、可比拟的formality 手续、礼节run-up 使变大、增长incoming 引入的、输入的high-powered 大功率的、高性能的3.watt 瓦特inbound 输入的、入网、入站、归航outbound 输出的、出网的、出战dial tone 拨号音interference 干扰、串扰4.successor 继承者、接任者cell 细胞、单元order of magnitude 数量级put-out 放出、生产、消除circular 圆形的、循环的5.hexagon 六边形antenna 天线second-level 二级的end-office 端局PSTN:Pulic Switched Telephone Network 公共电话交换局6.coexist 共存的upstream 上行比特流downsteam 下行比特流vocoder 语音编码器error correction 纠错7.simplex 单纯的、单一的payload 有效负载analogy 类似、类推multiframe 复帧hone 渴望、相念8.one‘s complement 二进制补码subdivide 细分、再分scheme 方案、计划、图sufficient it to say that 说---就足够了delineation 描绘、叙述9.gross 总的、毛重gross rate 总速率clump 块、图lounge 休息室10.garble 精选transmission power 发送功率heuristic 试探法spread spectrum communication 扩频通信facet 方面11.appliance 用具、器具on the inside 在里面、在内心oversee 俯瞰、监视virtual memory 虚拟内存transformer 互感器、变压器12.regulator 调节器IDE：Intergrated Drive Electronics 集成驱动电子设备SCSI:Small Computer System Interface 小型计算机系统接口AGP：Acclerated Graphics Port 加速图形接口Camcorder 便携式摄像机13.DSL:Digital Subscrible Line 数据用户线POST:Power-On-Selftest 通电自检Bootstrap 解鞋带、自力更新Unit 5 Modern Digital Design 现代数字设计1.embedded syste 嵌入式系统CD：Compact Disk 光盘Lifetime 一生、终生Lessen 减少、减轻Synthetic 合成的2.simulator 模拟器diagram 图schematic 原理图textual 文本的、原文的laborious 艰苦的、费力的、勤劳的3.HDL: Hard DescriptionLanguage 硬件描述语言VHDL:极高速集成电路硬件描述语言Cost-effective 有成本效益的、值得花钱的Full-custom 完全定制的Semi-custom半定制的4.in practical terms 实际上metal interconnected 金属互联的uncommitted 未确定用途的methodology 方法论、方法学statemachine 状态机5.next state 次态Boolean variable 布尔变量Rooting 布线、路由选择Placement 安放、布置RTL:Registor Transfer Level 寄存器传送级6.behavioral synthesis 行为综合augment 增加denote 指示、表示MPEG:Moving Picture ExpertGroup 运动图像专家组Viable 可行的7.ASSP: Application SpecificStandard Products 专用标准器件Telecom 电信Set-top-box 机顶盒IP:Intellectual Property 知识产权8.momentum 动力、要素developm phase 开发阶段submicron 亚微米consumer electronics 消费类电子产品niche 合适的环境、特殊的领域9.prototype 样机、模型dynamics 动力学concurrent 并行的testbench 测试平台stimuli 激励源10.up-to-date最新的、最近的impedance 阻抗in tandem with 串联、合作get-around 绕过、避开work one‘s way into 兢兢业业的完成11.wild card 百搭桥、通配符type conversion 类型变换annotation 注释tabular 格式的address 从事、忙于12.statement 语句reflex 反射、本能反应learning curve 学习曲线gate-level 门电路级compelling 强制的13.top-down 自顶而下的producing 生产力、生产率Unit 6 Digital Signal Processing 数字信号处理1.numerical 数字的sample and hold circuit 采样保持电路sampling interval 采样间隔aliasing 混叠reciprocal 互惠的、倒数的2.precede 领先于low pass 低通acquisition time 采集时间full scale range 满量程zero-order hold 零阶保持3.infinite 无限、无穷大deduce 推导undersampling 欠采样spectrum 频谱alternative 二选一的、有选择性的4．Time to market 上市时间Wireless infrastructure 无线电基础设施Price/performance ratio 性价Iterative 反复的、跌代的In conjugate with 与---协力5.emulation 仿真quantization level 量化电平erroneous 错误的、不正确的field-progarmmable 现场可编程的proposition 主张、建议6.impediment 妨碍、阻碍物glue-logic 互联逻辑compatibility 兼容性power dissipation 功率耗散end product 终端产品7.embrace 拥抱hand-held 手持的op amp 运算放大器shifer 移位器circular buffer 环形缓冲区8.smallest resolvable difference最小可分辨率mantissa 位数exponent 指数sentific notation 科学计数法mute 减弱的声音、哑的9．solder焊接Looping scheme 循环机制Second order 二阶Data compression 数据压缩In the context of 在---的情况下9.passive 无源的active 有源的strain 张力thermocouple 热电偶microphone 麦克风、扩音器10.strain gage 张力计signal conditional circuit 信号调理电路piezoelectric 压电的on-chip 片内的voltage reference 参考电压11.SPS；Sample Per Second 每秒样本数Stopband 阻带Passband 通带roll off 滚降ripple 波纹Unit 7 Audio and V oice 音频和声音1.triple 三倍于bunching 电子聚束data rate 数据率multrirate 多采样率sinx/x correction 校正2.trademark 商标auditorium 听众席bland 温和的lawsuit 法律诉讼waveform 波形3.oscilloscope 示波器jackhammer 手提钻temporal masking 暂时屏蔽constant-amplitude 固定幅度disjoint 使脱节、解体、脱臼4.interchannel 通道间redundancy 冗余perceptible 可察觉的、显而易见的spectral resolution 频率分辨率allocate 分派5.inaudible 听不见的monophonic 单声道的superimpose 添加、双重exponentially指数的、幂的drool 垂涎6.roam 漫游、闲逛hand-off 越区切换seamlessly 无缝的、完全链接的head-on 正面的stationary 固定的7.SMS:Short Message Swrvice短信业务m-commerce 移动业务cauldron 大锅炉terrestrial 陆地envision 想象、预想8.VHS:Video Home System 家用录像系统Backward-compatible 向下兼容的Chip rate 码片速率Die for 非常想要Notwithstanding 虽然9.gingerly 小心翼翼的、谨慎的overlay 覆盖preferred 首选的infrastructure 底层构造、基础设施doomed 注定的10.access point 接入点ubiquitous 到处存在的、普遍存在的understatement 低调的、保守的说法deploy 部署、使用stopgap 补缺者、暂时的11.at best 最多IP packet IP 数据报Map 映射time slot 时隙destined 有意的、注定的Unit 8 Graphics and Video图像和视频1.pixel 像素grapy scale 灰度级shade 颜色深浅、逐渐histogram 直方图image constrast 图像对比度2.bar graph 直条图time-lapsed 时间上相继的erosion 腐蚀blur 模糊的warping 扭曲、变形3.dilantin 膨胀、扩大morph 变种、变体edge-detection 边缘检测perimeter 周长、周界magnitude spectrum 幅度谱4.lossless 无损的phase spectrum 相位谱facsimile 传真、影印MRI: Magnetic ResonanceImaging 核磁共振成像CT: Computed Tomography计算机析层5.run-length 行程编码lossy 有损耗的lens 透镜的、镜头file-film 薄膜胶卷、影像succession 连续、继续6.candid 无偏见的、直率的vicinity 邻近、附近zoom 急速上升beam splitter 分光镜、分色镜CCD: Charge Coupled Device点和耦合电路7.crop out 显露出来panel 面板、全体陪审团blow up 充气、爆炸、放大in a pinch 在紧急情况下alkaline 碱性的8.deflection 斜偏flickr 闪烁、震动odd field 奇数场even field 偶数场frame grabber 帧接收机9.luminance 亮度chronminance 色度squash 挤进jargon 行话interlace 使交织、交错Unit 9 EmbeddedApplications 嵌入式应用1.PDA: personal DigitalAssitant 个人数字助理Norm 规范Probe 探查Frame –work 构造、结构Extol 赞美2.contract out 包出、外包system 系统生产cliché陈词滥调variant 变量、变体extant 现存的3.uncommon 不凡的、难得的shoestring 小额的资本masquerade 伪装、乔装semantic 语义学primitive 原语、基本要素4．Explicitly 明白地、清楚地Disciplined 受过训练的Resolution function 判决函数Verbose 详细的、冗长的Imperative 命令的、必要的5.concisely 简明地intuitively 直觉的、直观的release 发行preeminent 有先购买权的、有强制收购权monotonic 单调的6.error handling 错误处理pedal 踏板calcubale 可以计算的inhouse 内部的、自身的、固有的constraint 限制条件7.upfront 在前面的、提前支付的royalty 王位、特许权、专利权税pocketbook 钱袋、经济来源budgetary 预算的third-party 第三方Unit 10 ElectronicInstruments andMeasuments 电子仪器和测量1.acquisition 获取、采集logic analyzer 逻辑分析仪orginate 引起、起源、发明、创造stimulus signal 激励源design specification 设计规格2.corncerstone 墙角石troubleshooting 解决问题、发现并维修故障DMM：Digital Multimer 数字万用表UUT: Unit Under Test 被测系统Surrogate 代理（人）3．Margin 页面边框、页面空白Guide missible 导弹Ancillary 补助的、副的Spacing 间隔Slope 斜率4.in-phase 同相的、同步的pertinence 有关的pseudo 冒充的、假的untold 数不清的sonic boom 声爆5.arbitary 任意的vibrating 振动particle 粒子pervade 遍及archive 存档6.legible 清晰的、易读的grading 分级、分段single-shot 单脉冲phosphor 磷、启明星indispensable 不可缺少之物7.backside 后方cathode 阴极mnemonics助记符SUT: System Under Test 被测系统Extraneous 无关的、外来的以下110个十分常见，很重要，信不信由你，我是强烈的相信！1.transistor n 晶体管diode n 二极管semiconductor n 半导体resistor n 电阻器capacitor n 电容器2.alternating adj 交互的amplifier n 扩音器，放大器integrated circuit 集成电路linear time invariant systems 线性时不变系统voltage n 电压，伏特数3.tolerance n 公差；宽容；容忍condenser n 电容器；冷凝器dielectric n 绝缘体；电解质electromagnetic adj 电磁的adj 非传导性的deflection n偏斜；偏转；偏差4.linear device 线性器件the insulation resistance 绝缘电阻anode n 阳极，正极cathode n 阴极breakdown n 故障；崩溃terminal n终点站；终端，接线端5.emitter n 发射器collect v 收集，集聚，集中insulator n 绝缘体，绝热器oscilloscope n 示波镜；示波器gain n 增益，放大倍数6.forward biased 正向偏置reverse biased 反向偏置P-N junction PN结MOS（metal-oxide semiconductor）金属氧化物半导体enhancement and exhausted 增强型和耗尽型7.integrated circuits 集成电路analog n 模拟digital adj 数字的，数位的horizontal adj, 水平的，地平线的vertical adj 垂直的，顶点的8.amplitude n 振幅，广阔，丰富attenuation n 衰减；变薄；稀薄化multimeter n 万用表frequency n 频率，周率the cathode-ray tube 阴极射线管9.dual-trace oscilloscope 双踪示波器signal generating device 信号发生器peak-to-peak output voltage 输出电压峰峰值sine wave 正弦波triangle wave 三角波10.square wave 方波amplifier 放大器，扩音器oscillator n 振荡器feedback n 反馈，回应phase n 相，阶段，状态11. filter n 滤波器，过滤器rectifier n整流器；纠正者band-stop filter 带阻滤波器band-pass filter 带通滤波器decimal adj 十进制的，小数的12.hexadecimal adj/n十六进制的binary adj 二进制的；二元的octal adj 八进制的domain n 域；领域code n代码，密码，编码v编码13.the Fourier transform 傅里叶变换Fast Fourier Transform 快速傅里叶变换microcontroller n 微处理器；微控制器assembly language instrucions n 汇编语言指令chip n 芯片，碎片14.modular adj 模块化的；模数的sensor n 传感器plug vt堵，塞，插上n塞子，插头，插销coaxial adj 同轴的，共轴的fiber n 光纤15.relay contact 继电接触器single instruction programmer 单指令编程器dedicated manufactures programming unit 专供制造厂用的编程单元beam n （光线的）束，柱，梁16.polarize v（使）偏振，（使）极化Cathode Ray Tube（CRT）阴极射线管neuron n神经元；神经细胞fuzzy adj 模糊的Artificial Intelligence Shell 人工智能外壳程序17.Expert Systems 专家系统Artificial Intelligence 人工智能Perceptive Systems 感知系统neural network 神经网络fuzzy logic 模糊逻辑18.intelligent agent 智能代理electromagnetic adj 电磁的coaxial adj 同轴的，共轴的microwave n 微波charge v充电，使充电19.insulator n 绝缘体，绝缘物nonconductive adj非导体的，绝缘的antenna n天线；触角modeling n建模，造型simulation n 仿真；模拟20.prototype n 原型array n 排队，编队vector n 向量，矢量wavelet n 微波，小浪sine 正弦cosine 余弦21.inverse adj倒转的，反转的n反面；相反v倒转high-performance 高精确性，高性能two-dimensional 二维的；缺乏深度的three-dimensional 三维的；立体的；真实的object-oriented programming面向对象的程序设计22.spectral adj 光谱的attenuation n衰减；变薄；稀释distortion n 失真，扭曲，变形wavelength n 波长refractive adj 折射的总之，我是整理在这了，真的有没有我说的那样简单，你若不坚持，就当我没说。
电子信息类专业英语 翻译
9单元 数字信号处理 Passage C Comparison of DSP and ASP
C篇 比较DSP和ASP
学号：20107600 姓名：章太元
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Passage C Comparison of DSP and ASP
Signals may be processed using analog techniques (analog
signal processing, or ASP), digital techniques(digital signal
processing, or DSP), or a combination of analog and digital
techniques(mixed signal processing, or MSP). In some cases,
processors, performing such functions as multiplication (gain),
isolation (instrumentation amplifiers and isolation amplifiers),
A
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detection in the presence of noise (high common-mode instrumentation amplifiers etc.), dynamic range compression (log amps, LOGDACs, and programmable gain amplifiers), and filtering (both passive and active). Several methods of accomplishing signal processing are shown in Figure 9.5. The top portion of the figure shows the purely analog approach. The latter parts of the figure show the DSP approach. Note that once the decision has been made to use DSP techniques, the next decision must be where to place the ADC in the signal path.
信息科学与电子工程专业英语翻译(第9、11单元)
Unit 9 数字信号和信号处理Unit 9-1第一部分：数字信号处理数字信号处理（DSP）是研究数字表示的信号以及这些信号的处理方法。
数字信号处理和模拟信号处理是信号处理的子领域。
数字信号处理包括音频及语音信号处理、声纳和雷达信号处理、传感器阵列处理、谱估计、统计信号处理、图像处理、通信信号处理、生物医学信号处理等子领域。
数字信号处理的目标通常是测量连续的真实世界的模拟信号或对其滤波，因此，第一步常常是使用模数转换器将信号从模拟形式转换成数字形式。
通常，要求的输出信号为另一个模拟输出信号，这就需要数模转换器。
数字信号处理的算法有时通过使用专用计算机来实现，它们（专用计算机）利用被称为数字信号处理器的专用微处理器（简称DSP）。
这些数字信号处理器实时处理信号，通常是针对具体目的而设计的专用集成电路（ASIC）。
当灵活性和快速开发比大批量生产的成本更重要时，DSP算法也可以用现场可编程门阵列来实现。
数字信号处理域在数字信号处理中，工程师通常在下面几个域的一个域中来研究数字信号：时域（一维信号），空域（多维信号），频域，自相关域以及小波域。
他们按照某些依据来猜测（或试验不同的可能性）那一个域能够最好地表示信号的本质特性来选择在其中进行信号处理的域。
从测量设备得到的样本序列产生（信号的）时域或空域表示，而离散Fourier变换则产生频域表示即频谱。
自相关定义为信号与其自身经过时间或空间间隔变化后的互相关。
信号采样随着计算机应用的增长，数字信号处理的使用和需求日益增多。
为了能够在计算机上使用模拟信号，必须使用模数转换器（ADC）对其进行数字化。
采样通常分两步实现：离散化和量化。
在离散化阶段，信号空间被分割为相等的区间，用相应区间的代表性信号值代替信号本身。
在量化阶段，用有限集中的值来近似代表性的信号值。
为了能够正确地重建被采样的模拟信号，必须满足奈奎斯特-香农采样定理。
定理规定：采样频率必须大于两倍的信号带宽。
电子信息工程专业英语词汇(精选整理版)
电子信息工程专业英语词汇(精选整理版)1. IntroductionThis document provides a curated collection of key vocabulary terms related to the field of Electronic Information Engineering. It aims to assist students and professionals in their understanding and use of English terminology in this domain.2. Key Vocabulary Terms- Digital signal processing (数字信号处理)- Semiconductor device (半导体器件)- Electromagnetic wave (电磁波)- Microelectronics (微电子学)- Integrated circuit (集成电路)- Wireless networks (无线网络)- Optoelectronics (光电子学)- Signal transmission (信号传输)- Information theory (信息论)- Digital image processing (数字图像处理)- Electronic circuit design (电子电路设计)- Microprocessor technology (微处理器技术)- Power electronics (功率电子学)- Network security (网络安全)- Control systems (控制系统)3. Conclusion(Note: Please note that the translations provided are for reference purposes and may vary in different contexts. It is always advisable to consult reliable sources for accurate translations and further clarification.)。