MATLAB: How to find frequency components from a signal digital signal processingfftsignal processing How to find frequency components from a signal? Best Answer Your question is perhaps too generic, however to find frequency components of a signal in Matlab the FFT command is braodly used.Have a look herehttp://www.mathworks.es/es/help/matlab/ref/fft.html Related SolutionsMATLAB: How to divide the signal to AC and DC component. After you calculateY = fft(signal,NFFT)/L;then Y(1) is the average DC component, and Y(2:end) have to do with the AC components. MATLAB: Basic question about using MATLAB fft: divide fft() by number of data points The nextpow2 function zero-pads the signal so the fft calculation is more efficient. It adds no energy to the signal, so dividing by the length of the original signal is appropriate to normalise the amplitudes of the transformed components. Related Question
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