Wideband cancellation of interference in a GPS receive array

Author

Fante, R.L. ; Vaccaro, J.J.

Author_Institution

Mitre Corp., Bedford, MA, USA

Volume

36

Issue

2

fYear

2000

fDate

4/1/2000 12:00:00 AM

Firstpage

549

Lastpage

564

Abstract

We have demonstrated that by using an adaptive space-time array the interference from multiple, strong interferers plus multipath can be canceled down close to the noise floor without producing serious loss or distortion of a GPS signal. Design criteria are presented and limitations are examined. We also compare space-time processing with suboptimum space-frequency processing, and demonstrate by simulation that for equal computational complexity space-time processing slightly outperforms suboptimum space-frequency processing

Keywords

Global Positioning System; adaptive filters; array signal processing; covariance matrices; filtering theory; interference suppression; radiofrequency interference; space-time adaptive processing; GPS receive array; adaptive space-time array; design criteria; multipath cancellation; multiple strong interferers; space-time processing; wideband interference cancellation; Adaptive arrays; Bandwidth; Delay effects; Finite impulse response filter; Frequency; Global Positioning System; Interference cancellation; Noise cancellation; Voltage; Wideband;

fLanguage

English

Journal_Title

Aerospace and Electronic Systems, IEEE Transactions on

Publisher

ieee

ISSN

0018-9251

Type

jour

DOI

10.1109/7.845241

Filename

845241