What is the number of points used to perform the range_FFT the doppler_FFT and the reason why you need this number of points
In the example shown Accelerate the Discrete Fourier Transform with NXP SPT the number of points used for Range FFT is M=512 and for Doppler FFT is N=256, which means that one frame has N=256 chirps, and each chirp has M=512 samples.
In order to perform the FFT algorithm, the number of points (M and N) must be a power of 2. In general, the larger number the better the resolution.
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