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why y axis (acceleration value) are not matching in time and frequency domain while doing fft in hypergraph???.
x axis (frequency)value are coming correct.
Hi
for the fftmag function:
- it is needed 2^n values. so that if you do not have 2, or 4, or 8 ... 256, 512, 2^n it will not compute the magnitude correctly.
If there are not 2^n points, you can add (0,0) pairs to complete.
- having the 2^n pairs you can use:
freq(original_x) for the frequency, and
fold(fftmax(original_y_data))/(2^n)
example in the picture below.
Regards
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