Adaptive cancellation of stationary interference in the presence of structured nonstationary interference

Authors:
Michael Frey;Karl Gerlach
Affiliations:
Department of Mathematics, Bucknell University, Olin Science Building, Lewisburg, PA;Radar Division, Code 5341, Naval Research Laboratory, 4555 Overlook Avenue, SW, Washington, DC
Venue:
Signal Processing - Image and Video Coding beyond Standards
Year:
2002

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Abstract

Adaptive linear cancellation of interference is a key technique for enhancing the performance of many current and planned radar and wireless communication systems. Present methods of cancellation have limited capability when the interference is strongly nonstationary. A maximum likelihood-based cancellation procedure is given for Gaussian interference with a partially known nonstationary covariance component. This procedure is designed for adaptive cancellation implemented by a systolic cascaded array and performs well in computer Monte Carlo experiments.