Adaptive nulling with a multiple-beam antenna in FH/FDMA satellite communications

Author

Mason, Lloyd J.

Author_Institution

Dept. of Commun., Communication Res. Centre, Ottawa, Ont., Canada

fYear

1993

fDate

14-17 Sep 1993

Firstpage

413

Abstract

An adaptive processor for nulling of jammers in a satellite communications environment is described. The processor uses the outputs from a multiple beam antenna having seven elements to compute the weights for the linear combiner. The algorithm minimizes the squared magnitude of the output from the combiner subject to a constraint on the signal received from the known location of the user. For jammers noncoherent with the signal, performance improvements of 20 dB or more in the signal-to-jamming ratio were found in examples using this array processor

Keywords

adaptive systems; antenna arrays; array signal processing; frequency agility; horn antennas; interference suppression; jamming; satellite antennas; satellite relay systems; spread spectrum communication; time division multiple access; FH/FDMA satellite communications; adaptive processor; array processor; ing; jammers; linear combiner; multiple-beam antenna; performance improvements; Adaptive arrays; Apertures; Coordinate measuring machines; Frequency division multiaccess; Goniometers; Jamming; Q measurement; Satellite antennas; Satellite communication; Signal processing;

fLanguage

English

Publisher

ieee

Conference_Titel

Electrical and Computer Engineering, 1993. Canadian Conference on

Conference_Location

Vancouver, BC

Print_ISBN

0-7803-2416-1

Type

conf

DOI

10.1109/CCECE.1993.332201

Filename

332201