ffteqeng

Perform FFT in an engineering way

function [f OUTPUT] = FFTEQENG(data) calculates the properly scaled FFT of input "data",where:

data(:,1) = time vector

data(:,2) = data vector (acceleration, velocity, displacement, etc)

f = resulting frequency vector for frequency sampling Fs=1/dt and NFFT = pow2(nextpow2(L)) points > length(data)

OUTPUT = resulting data in frequency domain properly scaled