MATLAB: Non uniform sample in frequency analysis! non uniform dft

non uniform discrete fast sample fourier frequency analysis

Hallo! I am working in project that I have to make a frequency analysis on a time series. However my sample is not uniformly sampled so the Fast Fourier Transformation(FFT) is not appropriate for my analysis. After a search I found that for my case( no uniform sample) there is the Non Uniform Discrete Fourier Transformation (nuDFT). Does anyone know where can I find such a code or can suggest me any other way to make it?

Best Answer

If you have the Signal Processing Toolbox, one approach (that I would use) is to use the resample function.
It can convert non-uniformly-sampled data to uniformly-sampled data, and also uses an anti-aliasing filter. It is the preferred function for resampling signals for subsequent signal processing.
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