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ha7ilm/torch-rfft-derivative.md

Created October 31, 2022 06:06
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calculate the derivative of a signal with torch.fft
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torch-rfft-derivative.md 
F_signal = torch.fft.rfft(signal])
w = ((((torch.arange(0,301))/600)*(2*torch.pi))) #signal is 600 samples long
d_signal = torch.fft.irfft(w*torch.tensor(complex(0,1))*F_signal)*(1/dt)
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