Anti-leakage NDFT and its application in data reconstruction
Baotong Liu · 2010 3rd International Congress on Image and Signal Processing · 2010
Spectra estimation of irregularly sampled signals is an important issue in data reconstruction with Fourier transform. To improve spectral resolution of irregular sampling signals, this paper presents an anti-leakage non-uniform discrete Fourier transform (NDFT). The computation of DFT is performed via iterative non-linear estimation. Successful applications in harmonic retrieval and data reconstruction of real field VSP are demonstrated.