how to get power spectral density from time domain function by using fft

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md imran 2016-5-9

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回答： Star Strider 2016-5-9

sir, i have the time domain series values i.e,x vs t from experimental data of a lithium ion battery on which random vibration were said to be induced on a battery,but i don't know how to convert that time domain series to frequency domain function i.e PSD from fft in matlab. Sir,please could you help me out with the help of any syntax.

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Star Strider 2016-5-9

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See Power Spectral Density Estimates Using FFT and the R2015a documentation for fft.

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MATLAB Mathematics Fourier Analysis and Filtering

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