Null steering in phased arrays by positional perturbations: a genetic algorithm approach

Author

Alphones, A. ; Passoupathi

Author_Institution

Dept. of Electron. & Commun. Eng., Pondicherry Eng. Coll., India

fYear

1996

fDate

15-18 Oct 1996

Firstpage

203

Lastpage

207

Abstract

A genetic algorithm has been used for null steering in phased and adaptive arrays. It is shown that it is possible to steer the array nulls precisely to the required interference directions and to achieve any prescribed null depths. The use of genetic algorithm removes the restrictions on the array element displacements, required in the case of linear analytic method. Results are obtained for axial, elevational and arbitrary directional element positional perturbations through genetic algorithm for imposing nulls in the desired directions in the radiation pattern

Keywords

adaptive antenna arrays; antenna phased arrays; antenna radiation patterns; genetic algorithms; interference suppression; linear antenna arrays; adaptive arrays; arbitrary directional element positional perturbations; array element displacements; axial element positional perturbations; elevational element positional perturbations; genetic algorithm approach; interference directions; null depths; null steering; phased arrays; positional perturbations; radiation pattern; Adaptive arrays; Antenna radiation patterns; Broadband antennas; Educational institutions; Genetic algorithms; Genetic engineering; Interference; Jamming; Linear antenna arrays; Phased arrays;

fLanguage

English

Publisher

ieee

Conference_Titel

Phased Array Systems and Technology, 1996., IEEE International Symposium on

Conference_Location

Boston, MA

Print_ISBN

0-7803-3232-6

Type

conf

DOI

10.1109/PAST.1996.566084

Filename

566084