北航信号与系统第一次实验报告超级详细版

信号与系统实验一

连续时间系统卷积的数值计算

实

验

目

的

1 加深对卷积概念及原理的理解；

2 掌握借助计算机计算任意信号卷积的方法。实

验

原

理

()()()to

to

t

f

to

f

t

f d

2

1

?∞∞--

=

卷积

-2.0 0.00 -1.9 0.01 -1.8 0.03 -1.7 0.06 -1.6 0.10

实验二连续时间系统的频率响应

{return sqrt(x*x+(y-z)*(y-z));}

printf("%.1f

%5.3f %5.3f; ",f,h,w); u++ ;

if(u%3==0)printf("\n");

}

printf("\n");}

实

验

数

据

the number of zero point: 1

Laf the zero point.(x,y) 1:0,0

the number of pole point:

2

input the pole points.(x,y)

the number of zero point: 2

Laf the zero point.(x,y) 1:2,1.5

2:2,-1.5

the number of pole point: 4

input the pole points.(x,y) 1:-0.5,-0.7

2:-0.5,0.7

3:-2.5,-2

4:-2.5,2

0.0 0.824 6.283; 0.1 0.828 6.034; 0.2 0.838 5.779;

0.3 0.854 5.512; 0.4 0.869 5.227; 0.5 0.876 4.921;

0.6 0.867 4.596; 0.7 0.831 4.259; 0.8 0.770 3.924;

0.9 0.691 3.605; 1.0 0.608 3.311; 1.1 0.529 3.044;

1.2 0.459

2.802; 1.3 0.400 2.581; 1.4 0.350 2.377;

1.5 0.309

2.188; 1.6 0.275 2.010; 1.7 0.246 1.842;

1.8 0.222 1.682; 1.9 0.202 1.529;

2.0 0.184 1.383;

2.1 0.169 1.243; 2.2 0.156 1.108; 2.3 0.145 0.979;

2.4 0.135 0.855; 2.5 0.126 0.736; 2.6 0.118 0.621;

2.7 0.111 0.511; 2.8 0.104 0.405; 2.9 0.098 0.304;

3.0 0.093 0.206; 3.1 0.088 0.113; 3.2 0.084 0.023;

3.3 0.079 -0.062; 3.4 0.075 -0.145; 3.5 0.072 -0.223;

3.6 0.069 -0.299; 3.7 0.065 -0.371; 3.8 0.062 -0.441;

3.9 0.060 -0.507;

4.0 0.057 -0.571; 4.1 0.055 -0.632;

4.2 0.052 -0.691; 4.3 0.050 -0.747; 4.4 0.048 -0.801;

4.5 0.046 -0.853; 4.6 0.044 -0.902; 4.7 0.043 -0.950;

4.8 0.041 -0.996; 4.9 0.040 -1.040;

5.0 0.038 -1.083;

A(1)

零

极

A(2)

A(3)