Im trying to delay a signal in time?

Hey guys, this is probably very easy but i can't figure it out.

Im trying to delay a QPSK signal in time , a few seconds.

Variables:

Ns=Nb/2

fc=2.45e9;

t=linspace(0,Ns*Tb,length(Reference_Signal));

Reference_Signal is a 1x769600 double signal.

Im trying to delay this reference signal by doing this:

Surveillance_Signal= delayseq(Reference_Signal,3,fs); But this new signal is 0 in all columns.

Thank you

Answer 1

[Kiran Felix Robert]

Hi Miguel,

I am not sure about your 'fs' value, but according to the delayseq documentation, when you specify an 'fs' argument the delay units are in seconds.

Try checking the Survielence_Signal after 3 (your delay) seconds of abolute time.

Total time of the signal present = (length of signal) * (1/fs),

If the total time of signal is less than 3, then output will be zeros in all columns.

[Miguel Albuquerque]

thanks a lot :D