Scattering+Amplitude 源代码

% Program 15_12 % Sigma-Delta A/D Converter Operation % wo = 2*pi*0.01; N = input('Type in the length of i…

% Program 15_3 % Spectrogram of a Speech Signal % load mtlb n = 1:4001; plot(n-1,mtlb); xlabel('Time index n');ylabel('Ampli…

% Program 15_11 % Sigma-Delta Quantizer Operation N = input('Type in the length of input sequence = '); n = 1:1:N; m = n-1; A…

% Program 11_2 % Illustration of Filtering by a Lowpass IIR Filter % % Generate the input sequence k = 1:51; w1 = 0.8*pi;w2 =…

% Program 11_6 % Illustration of Filtering by a Lowpass FIR Filter % % Determine the FIR filter coefficients f = [0 0.3 0.5 …

% Program 11_7 % Illustration of Zero-Phase Digital Filtering % clf % Generate the input sequence k = 1:51; w1 = 0.8*pi;w2 =…

% Program 12_8 % Illustration of Overflow Limit Cycles % a = input('alpha_1 and alpha_2 values = '); yi1 = -0.625; yi2 = -0.12…

% Program 5_2 % Illustration of IDFT Computation % % Read in the length K of the DFT and the desired % length N of the IDFT K…

clear all; clf; N=1224; f1=200; f2=700; f3=1100; dt=1/1024; sam…

Fd= 1; %输入信号的采样率 Fs = 8; %输出信号的采样率 Delay = 3; %滤波器的群时延 R = 0.5; %滚降因子 [yf,tf] = rcosine(Fd,Fs,'fir',R,Delay); plot(yf) g…