How can I delay a chirp signal for signal processing?

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majid
majid il 24 Apr 2021
Commentato: Mathieu NOE il 26 Apr 2021
I have a question, how can i delay chirp signal? for example 6.5microsecond?
code:
% chirp signal generation 0-75 Hz ,7 chirp
clear all
clc
hchirp = dsp.Chirp('SweepDirection', 'unidirectional', 'TargetFrequency', 75, 'InitialFrequency', 0,...
'TargetTime', 1,'SweepTime', 1, 'SamplesPerFrame', 1176, 'SampleRate', 168);
figure(1);
plot(step(hchirp));
axis tight
xlabel('time (second)')
ylabel('signal amplitude')
% 6.5 microsecond signal delay.
hchirp_delayed=???
Thank you!
  1 Commento
Mathieu NOE
Mathieu NOE il 26 Apr 2021
hello
you have to padd your signal with enough zeros to match the 6.5 microsecond signal delay (depends of your sampling frequency :
samples = round(6.5e-6/Fs);

Accedi per commentare.

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