Bispectral analysis of two-dimensional random processes

Author

Chandran, Vinod ; Elgar, Steve

Author_Institution

Dept. of Electr. & Comput. Eng., Washington State Univ., Pullman, WA, USA

Volume

38

Issue

12

fYear

1990

fDate

12/1/1990 12:00:00 AM

Firstpage

2181

Lastpage

2186

Abstract

The extension of bispectral analysis from one-dimensional random processes (e.g. time series) to two-dimensional random processes is presented. Use of the symmetry properties of the bispectrum reduces the number of computations considerably. Numerical simulations demonstrate the ability of two-dimensional bispectral estimation to detect quadratic phase coupling between waves traveling in different directions. By windowing the data, bicoherence leakage can be reduced

Keywords

random processes; spectral analysis; bicoherence leakage; bispectral analysis; data windowing; harmonic processes; numerical simulations; one-dimensional random processes; quadratic phase coupling; symmetry properties; time series; two-dimensional bispectral estimation; two-dimensional random processes; Analytical models; Computational modeling; Fourier transforms; Information analysis; Leak detection; Multidimensional systems; Numerical simulation; Random processes; Two dimensional displays; Working environment noise;

fLanguage

English

Journal_Title

Acoustics, Speech and Signal Processing, IEEE Transactions on

Publisher

ieee

ISSN

0096-3518

Type

jour

DOI

10.1109/29.61546

Filename

61546