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How can I delay a chirp signal for signal processing?

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majid
majid le 24 Avr 2021
Commenté : Mathieu NOE le 26 Avr 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 commentaire
Mathieu NOE
Mathieu NOE le 26 Avr 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);

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