15 lines
314 B
Matlab
15 lines
314 B
Matlab
function [frequencies, values] = fft_(signal, sample_frequency)
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L=length(signal);
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Y = fft(signal);
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P2 = abs(Y); % two-sided spectrum
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% P2 = abs(Y/L); % two-sided spectrum
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P1 = P2(1:floor(L/2+1)); % single-sided spectrum
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P1(2:end-1) = 2*P1(2:end-1);
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frequencies = sample_frequency*(0:(L/2))/L;
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values = P1;
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end
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