Design filter by Rectangular window function

Matlab program to design filter by Rectangular window function.

Matlab code

clc; close all; clear all; 

Wc=.5*pi;

taps=25; % No of taps 

N=taps-1; % Filter order 

Analog-to-Digital filter conversion

Matlab program for Analog-to-Digital filter conversion. This program convert Analog Domain signal to Digital domain. 

Matlab code

% Let Transfer function in Analog Domain is (s^2+2s+1)/(s^3+5s^2+11s+15)

clc; close all; clear all; b=[1,2,1];

a=[1,5,11,15];

fs=5; %Sampling frequency

Chebyshev Type 2 Digital Band Stop Filter

Matlab program to design Chebyshev Type 2 Digital Band Stop Filter.

Matlab code

clc; clear all; close all;

rp=input('Enter the Passband ripple (In db) = '); 

rs=input('Enter the Stopband attenuation (In db) = '); 

Chebyshev Type 2 Digital Band Pass Filter

Matlab program to design Chebyshev Type 2 Digital Band Pass Filter.

Matlab code

clc; clear all; close all;

rp=input('Enter the Passband ripple (In db) = '); 

rs=input('Enter the Stopband attenuation (In db) = ');