MATLAB: How to delay a chirp signal for signal processing

chirpdigital signal processingMATLAB

I have a question, how can i delay a signal?

Code:

t = 0:1/1e3:2;

signal = chirp(t,0,2,250);

signal_delay=? (for example delay is 1s)

Thanky you!

Best Answer

t=1;
delay=t*1e3;        %delay of 1 seconds
z=zeros(1,delay);   %delay is the no. of delay samples
signal=[z,signal];

you can also use delayseq

Related Solutions

MATLAB: Signal processing

[Rxx, lags] = xcorr(x, y)
[Y, I] = max(Rxx);
lags(I)

Hi, I don't know still exactly how I can help u as the whole GUI thing and all is difficult to post in one answer here. For your convenience I am giving you an idea of how to generate a signal as a pulse train. I hope it would make things a bit easier for you.

delay_random = random('gaussian',0,10,1,1)* 2; % Delay randomly generated
freq_random = random('gaussian',0,10,1,1)*100; % Frequency randomly generated
phase_random = random('gaussian',0,10,1,1)*100; %Phase randomly generated
time = 0:1/50:10 ; %Time from 0 to 10 seconds 
pulse_time = 0:1/50:0.5; %Pulse duration from 0 to 0.5 seconds
a=0;
p = 0;
signal  = zeros(1,length(0:1/50:delay_random));
while(p <=10)
    a = cos(2*pi*freq_random*(0:1/50:0.5) + phase_random);
    p=p+0.5;
    signal = cat(signal,a);
end
figure(1);
plot(time,a);

You can use this code to write for event when you press a button on your GUI like a button to generate the pulse train. If you want you can add some noise to this code to make things a bit more realistic.. For any other help ,feel free to contact.

The estimation part I leave on you. It depends on what method you have to use

Best Answer

Related Solutions

MATLAB: Signal processing

MATLAB: Signal Processing

Related Question