Multiresolution-signal direction-of-arrival estimation: a wavelets approach

Author

Xu, Wen ; Stewart, W. Kenneth

Author_Institution

MIT/WHOI, Joint Prog. in Applied Ocean Phys. & Eng., Cambridge, MA, USA

Volume

7

Issue

3

fYear

2000

fDate

3/1/2000 12:00:00 AM

Firstpage

66

Lastpage

68

Abstract

This paper presents a general framework for the application of wavelets in array signal processing, including an understanding of the scale. A multiresolution-signal direction-of-arrival (DOA) estimation scheme is proposed based on the wavelet decomposition. Simulations show that the new approach improves the DOA estimation performance, particularly for sources near the broadside direction.

Keywords

array signal processing; channel bank filters; direction-of-arrival estimation; filtering theory; signal resolution; wavelet transforms; DOA estimation; DOA estimation performance; SNR; array signal processing; broadside direction; filter banks; multiresolution-signal direction-of-arrival estimation; numerical stability; signal sources; simulations; subband data; wavelet decomposition; Array signal processing; Direction of arrival estimation; Filter bank; Frequency; Sensor arrays; Signal processing; Signal resolution; Signal sampling; Spatial resolution; Time domain analysis;

fLanguage

English

Journal_Title

Signal Processing Letters, IEEE

Publisher

ieee

ISSN

1070-9908

Type

jour

DOI

10.1109/97.823528

Filename

823528