i need highpass filter 50hz and use ifft ont this help im desperaate

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zayaz aya
zayaz aya 2018-4-3
回答： Abhishek Ballaney 2018-4-6
Fs = 1000; T = 1/Fs; t = (0:L-1)*T; y1=110*sin(2*pi*50*t); y2=10*sin(2*pi*250*t); z=y1+y2; f = Fs*(0:(L/2))/L; z=abs(fft(z)); grid plot(z) figure(1); semilogx(f,z(1:numel(f)))

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Abhishek Ballaney
https://in.mathworks.com/help/signal/ref/butter.html
https://in.mathworks.com/help/matlab/ref/ifft.html

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