psd of any signal

How to find psd of any signal and I want the data as frequency(rad/sec) vs power

回答 (2 件)

Carlos
Carlos 2014 年 3 月 31 日

0 投票

Try something like this
N = length(x);
xfft = fft(x);
psdx = (1/(2*pi*N)).*abs(xfft).^2;
freq = 0:(2*pi)/N:2*pi-(2*pi)/N;
plot(freq./pi,10*log10(psdx)); grid on;
Achintya Roy
Achintya Roy 2014 年 3 月 31 日

0 投票

Is there any theory behind this

この質問は閉じられています。

質問済み:

2014 年 3 月 31 日

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2021 年 8 月 20 日

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