How can I write a Matlab code on Digital Signals Processing ?

5 views (last 30 days)
How can I write a MATLAB function (not a script!) to generate a periodic waveform of total length L. Each period must be a pulse of amplitude A that lasts a total ofM samples followed by T−M samples that are zero so that the overall period is T. The result should be a squarewave. Could you please help with this code, with a brief explaination of the code

Sign in to comment.

Accepted Answer

Thiago Henrique Gomes Lobato
This should work for you, the code is almost self explanatory:
L = 1024;
Periods = 4;
M = 128;
A = 1;
figure,plot( squareWave(L,M,Periods,A) )
function signal = squareWave(L,M,Periods,A)
signal = zeros(L,1); %initialize signal with zeros
if mod(L,Periods) ~= 0
signal = -1; % False input data
T = L/Periods; % Get length
% Replace only non-zero values
for idx=1:Periods
signal( 1+(idx-1)*T:1+(idx-1)*T+M) = A;
Stephen23 on 26 Aug 2020
Original comments by Jone Erikson retrieved from Google Cache:
The code above is not running Thigao
>> squareWave
Error: File: squareWave.m Line: 14 Column: 30
Function definitions are not permitted in this context.
Line 14: signal(1+(idx-1)*T:1+(idx-1)*T+M)= A;
Also, why did you assume these values for: L, M, A, and Periods?

Sign in to comment.

More Answers (0)

Community Treasure Hunt

Find the treasures in MATLAB Central and discover how the community can help you!

Start Hunting!

Translated by