(完整word版)信号与系统matlab实验.pdf
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1、习题三绘制典型信号及其频谱图1.更改参数,调试程序,绘制单边指数信号的波形图和频谱图。观察参数a 对信号波形及其频谱的影响。程序代码:close all;E=1;a=1;t=0:0.01:4;w=-30:0.01:30;f=E*exp(-a*t);F=1./(a+j*w);plot(t,f);xlabel(t);ylabel(f(t);figure;plot(w,abs(F);xlabel(omega);ylabel(|F(omega)|;E=1,a=1,波形图频谱图更改参数 E=2,a=1;文档编码:CS8Q7Y10J6U8 HI5F6Z4W4G6 ZH1T8U6B6P1文档编码:CS8Q7
2、Y10J6U8 HI5F6Z4W4G6 ZH1T8U6B6P1文档编码:CS8Q7Y10J6U8 HI5F6Z4W4G6 ZH1T8U6B6P1文档编码:CS8Q7Y10J6U8 HI5F6Z4W4G6 ZH1T8U6B6P1文档编码:CS8Q7Y10J6U8 HI5F6Z4W4G6 ZH1T8U6B6P1文档编码:CS8Q7Y10J6U8 HI5F6Z4W4G6 ZH1T8U6B6P1文档编码:CS8Q7Y10J6U8 HI5F6Z4W4G6 ZH1T8U6B6P1文档编码:CS8Q7Y10J6U8 HI5F6Z4W4G6 ZH1T8U6B6P1文档编码:CS8Q7Y10J6U8 HI5F6
3、Z4W4G6 ZH1T8U6B6P1文档编码:CS8Q7Y10J6U8 HI5F6Z4W4G6 ZH1T8U6B6P1文档编码:CS8Q7Y10J6U8 HI5F6Z4W4G6 ZH1T8U6B6P1文档编码:CS8Q7Y10J6U8 HI5F6Z4W4G6 ZH1T8U6B6P1文档编码:CS8Q7Y10J6U8 HI5F6Z4W4G6 ZH1T8U6B6P1文档编码:CS8Q7Y10J6U8 HI5F6Z4W4G6 ZH1T8U6B6P1文档编码:CS8Q7Y10J6U8 HI5F6Z4W4G6 ZH1T8U6B6P1文档编码:CS8Q7Y10J6U8 HI5F6Z4W4G6 ZH1T8U
4、6B6P1文档编码:CS8Q7Y10J6U8 HI5F6Z4W4G6 ZH1T8U6B6P1文档编码:CS8Q7Y10J6U8 HI5F6Z4W4G6 ZH1T8U6B6P1文档编码:CS8Q7Y10J6U8 HI5F6Z4W4G6 ZH1T8U6B6P1文档编码:CS8Q7Y10J6U8 HI5F6Z4W4G6 ZH1T8U6B6P1文档编码:CS8Q7Y10J6U8 HI5F6Z4W4G6 ZH1T8U6B6P1文档编码:CS8Q7Y10J6U8 HI5F6Z4W4G6 ZH1T8U6B6P1文档编码:CS8Q7Y10J6U8 HI5F6Z4W4G6 ZH1T8U6B6P1文档编码:CS8
5、Q7Y10J6U8 HI5F6Z4W4G6 ZH1T8U6B6P1文档编码:CS8Q7Y10J6U8 HI5F6Z4W4G6 ZH1T8U6B6P1文档编码:CS8Q7Y10J6U8 HI5F6Z4W4G6 ZH1T8U6B6P1文档编码:CS8Q7Y10J6U8 HI5F6Z4W4G6 ZH1T8U6B6P1文档编码:CS8Q7Y10J6U8 HI5F6Z4W4G6 ZH1T8U6B6P1文档编码:CS8Q7Y10J6U8 HI5F6Z4W4G6 ZH1T8U6B6P1文档编码:CS8Q7Y10J6U8 HI5F6Z4W4G6 ZH1T8U6B6P1文档编码:CS8Q7Y10J6U8 HI5
6、F6Z4W4G6 ZH1T8U6B6P1文档编码:CS8Q7Y10J6U8 HI5F6Z4W4G6 ZH1T8U6B6P1文档编码:CS8Q7Y10J6U8 HI5F6Z4W4G6 ZH1T8U6B6P1文档编码:CS8Q7Y10J6U8 HI5F6Z4W4G6 ZH1T8U6B6P1文档编码:CS8Q7Y10J6U8 HI5F6Z4W4G6 ZH1T8U6B6P1文档编码:CS8Q7Y10J6U8 HI5F6Z4W4G6 ZH1T8U6B6P1文档编码:CS8Q7Y10J6U8 HI5F6Z4W4G6 ZH1T8U6B6P1文档编码:CS8Q7Y10J6U8 HI5F6Z4W4G6 ZH1T
7、8U6B6P1文档编码:CS8Q7Y10J6U8 HI5F6Z4W4G6 ZH1T8U6B6P1文档编码:CS8Q7Y10J6U8 HI5F6Z4W4G6 ZH1T8U6B6P1文档编码:CS8Q7Y10J6U8 HI5F6Z4W4G6 ZH1T8U6B6P1文档编码:CS8Q7Y10J6U8 HI5F6Z4W4G6 ZH1T8U6B6P1文档编码:CS8Q7Y10J6U8 HI5F6Z4W4G6 ZH1T8U6B6P1文档编码:CS8Q7Y10J6U8 HI5F6Z4W4G6 ZH1T8U6B6P1文档编码:CS8Q7Y10J6U8 HI5F6Z4W4G6 ZH1T8U6B6P1文档编码:C
8、S8Q7Y10J6U8 HI5F6Z4W4G6 ZH1T8U6B6P1文档编码:CS8Q7Y10J6U8 HI5F6Z4W4G6 ZH1T8U6B6P1文档编码:CS8Q7Y10J6U8 HI5F6Z4W4G6 ZH1T8U6B6P1更改参数a,对信号波形及其频谱的影响。(保持 E=2)上图为 a=1 图像a=2 时文档编码:CS8Q7Y10J6U8 HI5F6Z4W4G6 ZH1T8U6B6P1文档编码:CS8Q7Y10J6U8 HI5F6Z4W4G6 ZH1T8U6B6P1文档编码:CS8Q7Y10J6U8 HI5F6Z4W4G6 ZH1T8U6B6P1文档编码:CS8Q7Y10J6U8
9、HI5F6Z4W4G6 ZH1T8U6B6P1文档编码:CS8Q7Y10J6U8 HI5F6Z4W4G6 ZH1T8U6B6P1文档编码:CS8Q7Y10J6U8 HI5F6Z4W4G6 ZH1T8U6B6P1文档编码:CS8Q7Y10J6U8 HI5F6Z4W4G6 ZH1T8U6B6P1文档编码:CS8Q7Y10J6U8 HI5F6Z4W4G6 ZH1T8U6B6P1文档编码:CS8Q7Y10J6U8 HI5F6Z4W4G6 ZH1T8U6B6P1文档编码:CS8Q7Y10J6U8 HI5F6Z4W4G6 ZH1T8U6B6P1文档编码:CS8Q7Y10J6U8 HI5F6Z4W4G6 Z
10、H1T8U6B6P1文档编码:CS8Q7Y10J6U8 HI5F6Z4W4G6 ZH1T8U6B6P1文档编码:CS8Q7Y10J6U8 HI5F6Z4W4G6 ZH1T8U6B6P1文档编码:CS8Q7Y10J6U8 HI5F6Z4W4G6 ZH1T8U6B6P1文档编码:CS8Q7Y10J6U8 HI5F6Z4W4G6 ZH1T8U6B6P1文档编码:CS8Q7Y10J6U8 HI5F6Z4W4G6 ZH1T8U6B6P1文档编码:CS8Q7Y10J6U8 HI5F6Z4W4G6 ZH1T8U6B6P1文档编码:CS8Q7Y10J6U8 HI5F6Z4W4G6 ZH1T8U6B6P1文档编
11、码:CS8Q7Y10J6U8 HI5F6Z4W4G6 ZH1T8U6B6P1文档编码:CS8Q7Y10J6U8 HI5F6Z4W4G6 ZH1T8U6B6P1文档编码:CS8Q7Y10J6U8 HI5F6Z4W4G6 ZH1T8U6B6P1文档编码:CS8Q7Y10J6U8 HI5F6Z4W4G6 ZH1T8U6B6P1文档编码:CS8Q7Y10J6U8 HI5F6Z4W4G6 ZH1T8U6B6P1文档编码:CS8Q7Y10J6U8 HI5F6Z4W4G6 ZH1T8U6B6P1文档编码:CS8Q7Y10J6U8 HI5F6Z4W4G6 ZH1T8U6B6P1文档编码:CS8Q7Y10J6U
12、8 HI5F6Z4W4G6 ZH1T8U6B6P1文档编码:CS8Q7Y10J6U8 HI5F6Z4W4G6 ZH1T8U6B6P1文档编码:CS8Q7Y10J6U8 HI5F6Z4W4G6 ZH1T8U6B6P1文档编码:CS8Q7Y10J6U8 HI5F6Z4W4G6 ZH1T8U6B6P1文档编码:CS8Q7Y10J6U8 HI5F6Z4W4G6 ZH1T8U6B6P1文档编码:CS8Q7Y10J6U8 HI5F6Z4W4G6 ZH1T8U6B6P1文档编码:CS8Q7Y10J6U8 HI5F6Z4W4G6 ZH1T8U6B6P1文档编码:CS8Q7Y10J6U8 HI5F6Z4W4G6
13、 ZH1T8U6B6P1文档编码:CS8Q7Y10J6U8 HI5F6Z4W4G6 ZH1T8U6B6P1文档编码:CS8Q7Y10J6U8 HI5F6Z4W4G6 ZH1T8U6B6P1文档编码:CS8Q7Y10J6U8 HI5F6Z4W4G6 ZH1T8U6B6P1文档编码:CS8Q7Y10J6U8 HI5F6Z4W4G6 ZH1T8U6B6P1文档编码:CS8Q7Y10J6U8 HI5F6Z4W4G6 ZH1T8U6B6P1文档编码:CS8Q7Y10J6U8 HI5F6Z4W4G6 ZH1T8U6B6P1文档编码:CS8Q7Y10J6U8 HI5F6Z4W4G6 ZH1T8U6B6P1文
14、档编码:CS8Q7Y10J6U8 HI5F6Z4W4G6 ZH1T8U6B6P1文档编码:CS8Q7Y10J6U8 HI5F6Z4W4G6 ZH1T8U6B6P1文档编码:CS8Q7Y10J6U8 HI5F6Z4W4G6 ZH1T8U6B6P1文档编码:CS8Q7Y10J6U8 HI5F6Z4W4G6 ZH1T8U6B6P1文档编码:CS8Q7Y10J6U8 HI5F6Z4W4G6 ZH1T8U6B6P1文档编码:CS8Q7Y10J6U8 HI5F6Z4W4G6 ZH1T8U6B6P1文档编码:CS8Q7Y10J6U8 HI5F6Z4W4G6 ZH1T8U6B6P1文档编码:CS8Q7Y10J
15、6U8 HI5F6Z4W4G6 ZH1T8U6B6P1a=4 时随着 a 的增大,f(t)曲线变得越来越陡,更快的逼近0,而对于频谱图,随着a 增大,图像渐渐向两边张开,峰值减小,陡度减小,图像整体变得更加平缓。2.矩形脉冲信号程序代码:close all;E=1;tao=1;t=-4:0.1:4;w=-30:0.1:30;文档编码:CS8Q7Y10J6U8 HI5F6Z4W4G6 ZH1T8U6B6P1文档编码:CS8Q7Y10J6U8 HI5F6Z4W4G6 ZH1T8U6B6P1文档编码:CS8Q7Y10J6U8 HI5F6Z4W4G6 ZH1T8U6B6P1文档编码:CS8Q7Y10J
16、6U8 HI5F6Z4W4G6 ZH1T8U6B6P1文档编码:CS8Q7Y10J6U8 HI5F6Z4W4G6 ZH1T8U6B6P1文档编码:CS8Q7Y10J6U8 HI5F6Z4W4G6 ZH1T8U6B6P1文档编码:CS8Q7Y10J6U8 HI5F6Z4W4G6 ZH1T8U6B6P1文档编码:CS8Q7Y10J6U8 HI5F6Z4W4G6 ZH1T8U6B6P1文档编码:CS8Q7Y10J6U8 HI5F6Z4W4G6 ZH1T8U6B6P1文档编码:CS8Q7Y10J6U8 HI5F6Z4W4G6 ZH1T8U6B6P1文档编码:CS8Q7Y10J6U8 HI5F6Z4W4
17、G6 ZH1T8U6B6P1文档编码:CS8Q7Y10J6U8 HI5F6Z4W4G6 ZH1T8U6B6P1文档编码:CS8Q7Y10J6U8 HI5F6Z4W4G6 ZH1T8U6B6P1文档编码:CS8Q7Y10J6U8 HI5F6Z4W4G6 ZH1T8U6B6P1文档编码:CS8Q7Y10J6U8 HI5F6Z4W4G6 ZH1T8U6B6P1文档编码:CS8Q7Y10J6U8 HI5F6Z4W4G6 ZH1T8U6B6P1文档编码:CS8Q7Y10J6U8 HI5F6Z4W4G6 ZH1T8U6B6P1文档编码:CS8Q7Y10J6U8 HI5F6Z4W4G6 ZH1T8U6B6P
18、1文档编码:CS8Q7Y10J6U8 HI5F6Z4W4G6 ZH1T8U6B6P1文档编码:CS8Q7Y10J6U8 HI5F6Z4W4G6 ZH1T8U6B6P1文档编码:CS8Q7Y10J6U8 HI5F6Z4W4G6 ZH1T8U6B6P1文档编码:CS8Q7Y10J6U8 HI5F6Z4W4G6 ZH1T8U6B6P1文档编码:CS8Q7Y10J6U8 HI5F6Z4W4G6 ZH1T8U6B6P1文档编码:CS8Q7Y10J6U8 HI5F6Z4W4G6 ZH1T8U6B6P1文档编码:CS8Q7Y10J6U8 HI5F6Z4W4G6 ZH1T8U6B6P1文档编码:CS8Q7Y1
19、0J6U8 HI5F6Z4W4G6 ZH1T8U6B6P1文档编码:CS8Q7Y10J6U8 HI5F6Z4W4G6 ZH1T8U6B6P1文档编码:CS8Q7Y10J6U8 HI5F6Z4W4G6 ZH1T8U6B6P1文档编码:CS8Q7Y10J6U8 HI5F6Z4W4G6 ZH1T8U6B6P1文档编码:CS8Q7Y10J6U8 HI5F6Z4W4G6 ZH1T8U6B6P1文档编码:CS8Q7Y10J6U8 HI5F6Z4W4G6 ZH1T8U6B6P1文档编码:CS8Q7Y10J6U8 HI5F6Z4W4G6 ZH1T8U6B6P1文档编码:CS8Q7Y10J6U8 HI5F6Z4
20、W4G6 ZH1T8U6B6P1文档编码:CS8Q7Y10J6U8 HI5F6Z4W4G6 ZH1T8U6B6P1文档编码:CS8Q7Y10J6U8 HI5F6Z4W4G6 ZH1T8U6B6P1文档编码:CS8Q7Y10J6U8 HI5F6Z4W4G6 ZH1T8U6B6P1文档编码:CS8Q7Y10J6U8 HI5F6Z4W4G6 ZH1T8U6B6P1文档编码:CS8Q7Y10J6U8 HI5F6Z4W4G6 ZH1T8U6B6P1文档编码:CS8Q7Y10J6U8 HI5F6Z4W4G6 ZH1T8U6B6P1文档编码:CS8Q7Y10J6U8 HI5F6Z4W4G6 ZH1T8U6B
21、6P1文档编码:CS8Q7Y10J6U8 HI5F6Z4W4G6 ZH1T8U6B6P1文档编码:CS8Q7Y10J6U8 HI5F6Z4W4G6 ZH1T8U6B6P1文档编码:CS8Q7Y10J6U8 HI5F6Z4W4G6 ZH1T8U6B6P1文档编码:CS8Q7Y10J6U8 HI5F6Z4W4G6 ZH1T8U6B6P1文档编码:CS8Q7Y10J6U8 HI5F6Z4W4G6 ZH1T8U6B6P1文档编码:CS8Q7Y10J6U8 HI5F6Z4W4G6 ZH1T8U6B6P1文档编码:CS8Q7Y10J6U8 HI5F6Z4W4G6 ZH1T8U6B6P1文档编码:CS8Q7
22、Y10J6U8 HI5F6Z4W4G6 ZH1T8U6B6P1f=E*(t-tao/2&tao/2)+0*(t=tao/2);F=(2*E./w).*sin(w*tao/2);plot(t,f);xlabel(t);ylabel(f(t);figure;plot(w,abs(F);xlabel(omega);ylabel(|F(omega)|);figure;plot(w,20*log10(abs(F);xlabel(omega);ylabel(|F(omega)|in dB);figure;plot(w,angle(F);xlabel(omega);ylabel(phi(omega);文档编
23、码:CS8Q7Y10J6U8 HI5F6Z4W4G6 ZH1T8U6B6P1文档编码:CS8Q7Y10J6U8 HI5F6Z4W4G6 ZH1T8U6B6P1文档编码:CS8Q7Y10J6U8 HI5F6Z4W4G6 ZH1T8U6B6P1文档编码:CS8Q7Y10J6U8 HI5F6Z4W4G6 ZH1T8U6B6P1文档编码:CS8Q7Y10J6U8 HI5F6Z4W4G6 ZH1T8U6B6P1文档编码:CS8Q7Y10J6U8 HI5F6Z4W4G6 ZH1T8U6B6P1文档编码:CS8Q7Y10J6U8 HI5F6Z4W4G6 ZH1T8U6B6P1文档编码:CS8Q7Y10J6U
24、8 HI5F6Z4W4G6 ZH1T8U6B6P1文档编码:CS8Q7Y10J6U8 HI5F6Z4W4G6 ZH1T8U6B6P1文档编码:CS8Q7Y10J6U8 HI5F6Z4W4G6 ZH1T8U6B6P1文档编码:CS8Q7Y10J6U8 HI5F6Z4W4G6 ZH1T8U6B6P1文档编码:CS8Q7Y10J6U8 HI5F6Z4W4G6 ZH1T8U6B6P1文档编码:CS8Q7Y10J6U8 HI5F6Z4W4G6 ZH1T8U6B6P1文档编码:CS8Q7Y10J6U8 HI5F6Z4W4G6 ZH1T8U6B6P1文档编码:CS8Q7Y10J6U8 HI5F6Z4W4G6
25、 ZH1T8U6B6P1文档编码:CS8Q7Y10J6U8 HI5F6Z4W4G6 ZH1T8U6B6P1文档编码:CS8Q7Y10J6U8 HI5F6Z4W4G6 ZH1T8U6B6P1文档编码:CS8Q7Y10J6U8 HI5F6Z4W4G6 ZH1T8U6B6P1文档编码:CS8Q7Y10J6U8 HI5F6Z4W4G6 ZH1T8U6B6P1文档编码:CS8Q7Y10J6U8 HI5F6Z4W4G6 ZH1T8U6B6P1文档编码:CS8Q7Y10J6U8 HI5F6Z4W4G6 ZH1T8U6B6P1文档编码:CS8Q7Y10J6U8 HI5F6Z4W4G6 ZH1T8U6B6P1文
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