Improving performance of real-symmetric adaptive array by signal blocking

Author

Lo, K.W.

Author_Institution

Microwave Radar Div., Defence Sci. & Technol. Organ., Australia

Volume

31

Issue

2

fYear

1995

fDate

4/1/1995 12:00:00 AM

Firstpage

821

Lastpage

830

Abstract

The use of signal blocking to improve the performance of a directional constrained adaptive array with real-symmetric weights is proposed. With signal blocking, the adapted beamwidth of the array is broadened, thereby reducing the effect of pointing errors, and the output signal-to-noise-plus-interference ratio (SNIR) converges with less signal samples. A modified sample matrix inversion (SMI) algorithm is described, which allows the adaptive weight vector to be computed more efficiently. Computer simulation results are presented for illustration.<>

Keywords

adaptive antenna arrays; antenna theory; digital simulation; interference (signal); matrix inversion; adapted beamwidth; adaptive weight vector; computer simulation; directional constrained adaptive array; modified sample matrix inversion algorithm; pointing errors; real-symmetric adaptive array; real-symmetric weights; signal blocking; signal-to-noise-plus-interference ratio; Adaptive arrays; Australia; Computer errors; Computer simulation; Convergence; Covariance matrix; Power generation; Radar detection; Sonar applications; Sonar detection;

fLanguage

English

Journal_Title

Aerospace and Electronic Systems, IEEE Transactions on

Publisher

ieee

ISSN

0018-9251

Type

jour

DOI

10.1109/7.381928

Filename

381928