FFT of time domain data from excel

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Yogesh Nadarge
Yogesh Nadarge 2020-7-28
编辑： Alan Moses 2020-8-5
Hi,
I am attaching my .csv file which is having time data (in microseconds)in first column & amplitude data in second column. Can anybody help me to plot a frequency spectrum of this data. Your help will be much appreciated as I am new to FFT in MATLAB.

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回答（1 个）

Alan Moses
Alan Moses 2020-8-5
编辑：Alan Moses 2020-8-5
You can refer to readmatrix for reading the data from the CSV file. Using the readmatrix function, data in the CSV file you have mentioned is read into a matrix, where the first column indicates time and the second column indicates amplitude. Please refer to fft for applying fft function and plot the frequency spectrum.

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