A new algorithm for retrieval of 2D exponentials

Author

Zheng, Yibin

Author_Institution

Dept. of Electr. & Comput. Eng., Virginia Univ., Charlottesville, VA, USA

Volume

3

fYear

2003

fDate

6-10 April 2003

Abstract

A novel parametric algorithm that can retrieve roughly 0.25MN 2D exponentials or 0.343MN 2D harmonics from M×N array data is presented. This compares favorably with most existing algorithms which can retrieve only order max(M, N) exponentials or harmonics. The algorithm is not Fourier resolution limited, and requires neither searching in 2D space nor 2D polynomial rooting. A specific example of retrieving 4 harmonics from a 3×3 array is developed in detail and numerical performance is demonstrated.

Keywords

array signal processing; harmonic analysis; harmonics; parameter estimation; 2D exponential retrieval; 2D harmonics; 2D polynomial rooting; 2D space searching; Fourier resolution limit; array data; array processing; parameter identification; parametric algorithm; signal processing theory; Array signal processing; Delay estimation; Direction of arrival estimation; Equations; Information retrieval; Music information retrieval; Polynomials; Radar signal processing; Signal processing algorithms; Signal resolution;

fLanguage

English

Publisher

ieee

Conference_Titel

Acoustics, Speech, and Signal Processing, 2003. Proceedings. (ICASSP '03). 2003 IEEE International Conference on

ISSN

1520-6149

Print_ISBN

0-7803-7663-3

Type

conf

DOI

10.1109/ICASSP.2003.1199506

Filename

1199506