Jammer cancellation with adaptive arrays for GPS signals

Author

Gecan, Anton ; Flikkema, Paul ; Snider, Arthur David

Author_Institution

E-Systems Inc., St. Petersburg, FL, USA

fYear

1996

fDate

11-14 Apr 1996

Firstpage

320

Lastpage

323

Abstract

We describe a scheme for adaptively generating array receiver-antenna weights so as to reduce jamming interference of the GPS signal to a level where the spread spectrum mechanism can extract the signal. The procedure is based on an analytic implementation of the LMS algorithm, with gradients evaluated simply by determination of the power in certain mathematical combinations of the array outputs. The scheme converges so rapidly that it is very robust to vehicular motion and the presence of noise

Keywords

Global Positioning System; adaptive antenna arrays; array signal processing; interference suppression; jamming; least mean squares methods; radiofrequency interference; receiving antennas; spread spectrum communication; GPS signals; LMS algorithm; adaptive arrays; analytic implementation; array outputs; array receiver-antenna weights; gradients; jammer cancellation; jamming interference; noise; spread spectrum; vehicular motion; Adaptive arrays; Global Positioning System; Integral equations; Interference; Jamming; Noise level; Phased arrays; Receiving antennas; Signal generators; Spread spectrum communication;

fLanguage

English

Publisher

ieee

Conference_Titel

Southeastcon '96. Bringing Together Education, Science and Technology., Proceedings of the IEEE

Conference_Location

Tampa, FL

Print_ISBN

0-7803-3088-9

Type

conf

DOI

10.1109/SECON.1996.510083

Filename

510083