Performance analysis of a null-steering algorithm based on direction-of-arrival estimation

Author

Friedlander, Benjamin ; Porat, Boaz

Author_Institution

Signal Process. Technol. Ltd., Palo Alto, CA, USA

Volume

37

Issue

4

fYear

1989

fDate

4/1/1989 12:00:00 AM

Firstpage

461

Lastpage

466

Abstract

A two-step null-steering algorithm is considered. The first step consists of estimating the directions of arrival of all wavefronts impinging on a sensor array. The second step consists of forming nulls in the estimated directions of the interferers, while maximizing the received signals. A first-order performance analysis is carried out, leading to an asymptotic formula for the output interference-to-signal ratio (OISR). Numerical examples are presented to illustrate the dependence of the OISR on the spatial separation of the interferer and the signal and on the array aperture.<>

Keywords

antenna arrays; antenna theory; estimation theory; interference (signal); signal processing; antenna arrays; direction-of-arrival estimation; first-order performance analysis; interference-to-signal ratio; interferers; null-steering algorithm; received signals; sensor array; wavefronts; Algorithm design and analysis; Array signal processing; Calibration; Direction of arrival estimation; Interference; Multiple signal classification; Performance analysis; Phased arrays; Sensor arrays; Signal processing algorithms;

fLanguage

English

Journal_Title

Acoustics, Speech and Signal Processing, IEEE Transactions on

Publisher

ieee

ISSN

0096-3518

Type

jour

DOI

10.1109/29.17526

Filename

17526