2-D Angle of Arrival Estimation with Two Parallel Uniform Linear Arrays for Coherent Signals

Author

Xia, T.Q. ; Zheng, Y. ; Wan, Q. ; Wang, X.G.

Author_Institution

Univ. of Electron. Sci. & Technol. of China, Chengdu

fYear

2007

fDate

17-20 April 2007

Firstpage

244

Lastpage

247

Abstract

In this paper, a previously proposed estimator is extended to estimate two dimensional (2-D) angles of arrival of multiple highly correlated and coherent signals by using forward /backward spatial smoothing techniques. The special structure of the two parallel uniform linear arrays (ULAs) is exploited to estimate 2-D angles of arrival as polynomial roots. The computation complexity of the proposed method is discussed. Simulation results show that the proposed method can achieve higher resolutions and lower root mean square errors compared with DOA matrix method.

Keywords

array signal processing; computational complexity; correlation methods; direction-of-arrival estimation; least mean squares methods; matrix algebra; smoothing methods; 2D angle of arrival estimation; DOA matrix method; coherent signals; computational complexity; forward /backward spatial smoothing techniques; lower root mean square errors; polynomial roots; two parallel uniform linear arrays; Computational modeling; Direction of arrival estimation; Multiple signal classification; Polynomials; Root mean square; Sensor arrays; Signal resolution; Smoothing methods; Spatial resolution; Two dimensional displays; angle of arrival; polynomial roots; spatial smoothing; uniform linear array;

fLanguage

English

Publisher

ieee

Conference_Titel

Radar Conference, 2007 IEEE

Conference_Location

Boston, MA

ISSN

1097-5659

Print_ISBN

1-4244-0284-0

Electronic_ISBN

1097-5659

Type

conf

DOI

10.1109/RADAR.2007.374221

Filename

4250315