2 signals to 1 channel ? use FFT
1 Ansicht (letzte 30 Tage)
Ältere Kommentare anzeigen
How can I change 2 signal to 1 channel.
m1(t)= (A1 Cos2 pi F1 t)
m1(t)= (A2 Cos2 pi F2 t) to one channel
thank you for help.
2 Kommentare
Antworten (2)
Jan
am 4 Nov. 2016
Do you want to concatenate the signals? Then cat is the right command. Or do you want to add the signals? Then add them using + and perhaps you need a normalization afterwards, if any values exceed the allowed range:
S = S / max(abs(S(:));
Daniel kiracofe
am 6 Nov. 2016
assuming that t is a vector containing time intervals, and that F1 and F2 are frequencies, and A1 and A2 are amplitudes, then I assume that what you want is this:
m1 = A1* cos(2 * pi * F1 * t) + A2 * cos( 2 *pi F2* t)
If that is not what you want then I don't understand the question.
2 Kommentare
Daniel kiracofe
am 11 Nov. 2016
ah. tdm means "time division multiplexing". https://en.wikipedia.org/wiki/Time-division_multiplexing
I don't know if there is a specific function to do that in matlab. and I don't know how to do using an FFT. But it's basically just interleaving the samples. if you have 2 vectors called m1 and m2, each of length N, you can just do this:
for i = 1:N tdm_signal(2*i-1) = m1(i); tdm_signal(2*i ) = m2(i); end
Siehe auch
Kategorien
Mehr zu Fourier Analysis and Filtering finden Sie in Help Center und File Exchange
Community Treasure Hunt
Find the treasures in MATLAB Central and discover how the community can help you!
Start Hunting!