DSSS Plotting

조회 수: 9 (최근 30일)
Tiisetso Ntlatleng
Tiisetso Ntlatleng 2011년 3월 1일
답변: Pritesh 2024년 3월 13일
I have a QPSK signal (amplitude samples) that I've spread using DSSS. The PSD of the DSSS spread signal should be spread in frequency and the power should go down. When I plot the frequency response of the DSSS signal, it looks spread but has not attenuated. I use the function {plot (20*log(fft(DSSS_time_domain_signal)))} to plot the DSSS frequency version of the signal. Is there something Im not considering when plotting?

답변 (2개)

Vieniava
Vieniava 2011년 3월 4일
Try this:
plot(20*log(abs(fft(DSSS_time_domain_signal))))

Pritesh
Pritesh 2024년 3월 13일
plot(20*log(abs(fft(DSSS_time_domain_signal))))

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