freqspace.m
버전 1.0.0.0 (1.3 KB) 작성자:
Ivan van der Kroon
Finds the corresponding frequency array for a homogeneous spaced vector.
When producing a spectrum with fft.m there is no build-in m-file to find the corresponding y-axis. Example; if you want to plot the real Fourier coefficients of a signal (y) with corresponding time (t), write 'plot(freqspace(t),real(fft(y)))'. Created while finding derivatives in the Fourier sense, i.e. dy/dt=ifft(2i*pi*freqspace(t).*fft(y),'symmetric'); Uses ifftshift.m and linspace.m.
인용 양식
Ivan van der Kroon (2024). freqspace.m (https://www.mathworks.com/matlabcentral/fileexchange/31108-freqspace-m), MATLAB Central File Exchange. 검색됨 .
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