P2_6.m
资源名称:speech.rar [点击查看]
上传用户:ay_070428
上传日期:2014-12-04
资源大小:11427k
文件大小:1k
源码类别:
语音合成与识别
开发平台:
Matlab
- % Program P2_6 % Cascade Realization clf; x = [1 zeros(1,40)]; % Generate the input n = 0:40; % Coefficients of 4th order system den = [1 1.6 2.28 1.325 0.68]; num = [0.06 -0.19 0.27 -0.26 0.12]; % Compute the output of 4th order system y = filter(num,den,x); % Coefficients of the two 2nd order systems num1 = [0.3 -0.2 0.4];den1 = [1 0.9 0.8]; num2 = [0.2 -0.5 0.3];den2 = [1 0.7 0.85]; % Output y1[n] of the first stage in the cascade y1 = filter(num1,den1,x); % Output y2[n] of the second stage in the cascade y2 = filter(num2,den2,y1); % Difference between y[n] and y2[n] d = y - y2; % Plot output and difference signals subplot(3,1,1); stem(n,y); ylabel('Amplitude'); title('Output of 4th order Realization'); grid; subplot(3,1,2); stem(n,y2) ylabel('Amplitude'); title('Output of Cascade Realization'); grid; subplot(3,1,3); stem(n,d) xlabel('Time index n');ylabel('Amplitude'); title('Difference Signal'); grid;