A source tracking algorithm for robust adaptive array processing

Author

KO, CC ; Wu, ZY

Author_Institution

Dept. of Electr. Eng., Nat. Univ. of Singapore, Singapore

Volume

1

fYear

1993

fDate

6-11 Sep 1993

Firstpage

300

Abstract

A simple and fast algorithm for adaptive arrays with large look direction errors is investigated. The algorithm adjusts the complex response zeros of the array in a time-multiplexed manner to track all the sources individually and preserve the desired signal by removing the zero with the shortest distance to e^j0, where 0° is the look direction. When compared with the LMS algorithm employing zeroth and first order look direction constraints, the new algorithm is much faster and has a much better SNR performance when the look direction is erroneous

Keywords

adaptive antenna arrays; adaptive signal processing; array signal processing; poles and zeros; tracking; SNR performance; complex response zeros; look direction errors; robust adaptive array processing; source tracking algorithm; Adaptive arrays; Array signal processing; Convergence; Interference constraints; Jamming; Least squares approximation; Phase estimation; Phase shifters; Robustness; Signal processing;

fLanguage

English

Publisher

ieee

Conference_Titel

Networks, 1993. International Conference on Information Engineering '93. 'Communications and Networks for the Year 2000', Proceedings of IEEE Singapore International Conference on

Print_ISBN

0-7803-1445-X

Type

conf

DOI

10.1109/SICON.1993.515775

Filename

515775