Program
code
%Chebyshev low pass filter
clc;
clear all;
close all;
fp=input('Please enter
the pass band frequency: ');
fs=input('Please enter
the stop band frequency: ');
rp=input('Please enter
the pass band attenuation: ');
rs=input('Please enter
the stop band attenuation: ');
sf=input('Please enter
the sampling frequency: ');
wp=2*fp/sf;
ws=2*fs/sf;
[n,wn]=cheb1ord(wp,ws,rp,rs);
[b,a]=cheby1(n,rp,wn,'low');
freqz(b,a);
title('Chebyshev low
pass filter');
Example of output
Please enter the
pass band frequency: 2000
Please enter the
stop band frequency: 1600
Please enter the
pass band attenuation: .4
Please enter the
stop band attenuation: 50
Please enter the
sampling frequency: 8000
_________________________________________
If you find this program code useful, then please deposit 5 Indian Rupees in my bank account, as my fee. (Citizens of Pakistan cannot do this.).
I am the woman who wrote this program code.
My name: Anju K.
My bank account number: 30221619108
Bank: State Bank of India, Chakkarakkal branch, India.
IFSC code: SBIN0070728
SWIFT code: SBININBB
BIC code: SBININBB
My email: tc9749@gmail.com .