Title :
Wideband cancellation of interference in a GPS receive array
Author :
Fante, R.L. ; Vaccaro, J.J.
Author_Institution :
Mitre Corp., Bedford, MA, USA
fDate :
4/1/2000 12:00:00 AM
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;
Journal_Title :
Aerospace and Electronic Systems, IEEE Transactions on
