Anti-leakage NDFT and its application in data reconstruction

Author

Liu, Baotong

Author_Institution

Coll. of Phys. & Inf. Sci., Tianshui Normal Univ., Tianshui, China

Volume

7

fYear

2010

fDate

16-18 Oct. 2010

Firstpage

3340

Lastpage

3344

Abstract

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.

Keywords

discrete Fourier transforms; iterative methods; nonlinear estimation; signal reconstruction; signal sampling; spectral analysis; VSP; antileakage NDFT; antileakage nonuniform discrete Fourier transform; data reconstruction; harmonic retrieval; irregular signal sampling; iterative nonlinear estimation; spectra estimation; Discrete Fourier transforms; Equations; Estimation; Harmonic analysis; Signal resolution; Time series analysis; anti-leakage; data reconstruction; harmonic retrieval; irregularly sampled signals; non-uniform discrete Fourier transform (NDFT); spectrum estimation; vertical seismic profiling (VSP);

fLanguage

English

Publisher

ieee

Conference_Titel

Image and Signal Processing (CISP), 2010 3rd International Congress on

Conference_Location

Yantai

Print_ISBN

978-1-4244-6513-2

Type

conf

DOI

10.1109/CISP.2010.5647641

Filename

5647641