changing frequency of a time domain signal by either frequency multiplication or frequency division
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I have a periodical signal with period of 1 sec (and samling rate Fs=1000 HZ). Now, I'd like to use FFT and iFFT to change the period of the signal such that the period could be 1.2 sec or 0.8 second.
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Chunru
2022-9-19
How about just change sampling frequency from 1000 to 1000/1.2 or 1000/0.8 so that the original signal of 1sec period becomes 1.2 sec and 0.8sec?
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