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How to calculate Σ p(x) dx?

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meenu v
meenu v 2020-11-10
评论： Walter Roberson 2020-11-11
Σp(x)dx
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meenu v
meenu v 2020-11-11
i want to calculate S= 4* √ Σ psd(f) df
Walter Roberson
Walter Roberson 2020-11-11
d notation is used for infinitesimals, which have to be integrated rather than summed. For finite quantities delta notation is used and indication of the summation limits would be given.
Anyhow see
https://www.mathworks.com/help/signal/ref/dspdata.psd.html
https://www.mathworks.com/help/signal/ug/power-spectral-density-estimates-using-fft.html

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