txccjj
Marine/Ocean
- Dec 19, 2006
- 1
Hi,
I used the 'spectrum' command before to plot power spectrums. However, I realized that it has been replaced by 'pwelch' command now. The results are different even though I used the same parameters (nwin, noverlap, nfft, etc). Especially for the amplitude of the peaks: some peaks become smaller whereas others become bigger when I used the new command. Could please someone tell me what's the difference before the two commands? Thanks a lot!!!
I used the 'spectrum' command before to plot power spectrums. However, I realized that it has been replaced by 'pwelch' command now. The results are different even though I used the same parameters (nwin, noverlap, nfft, etc). Especially for the amplitude of the peaks: some peaks become smaller whereas others become bigger when I used the new command. Could please someone tell me what's the difference before the two commands? Thanks a lot!!!
