getting frequency data to time data

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Fabian Chowanek
Fabian Chowanek 2020-6-8
回答： Chaitanya Mallela 2020-8-18
.. Hi .. I know it sounds just too simple, but imagine I have just frequency data and I need the time data out of it to plot some other magnitude data over the time in 1/samplerate.
Am I just going to say
time = ifft(freq)
?
Or should I be cautious because the freq vector might be complex?
TY

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回答（1 个）

Chaitanya Mallela
Chaitanya Mallela 2020-8-18
ifft function transforms the complex signal data from frequency domain to time domain where the time difference between the successive samples of the time domain data equal to the inverse of Sampling Frequency.
For more information refer the documentation link
https://www.mathworks.com/help/matlab/ref/ifft.html

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