Fast algorithm and architecture for constrained adaptive sidelobe cancellation

Richard A. Games; Willard L. Eastman; Michael J. Sousa

doi:10.1117/12.49834

1 December 1991 Fast algorithm and architecture for constrained adaptive sidelobe cancellation

Richard A. Games, Willard L. Eastman, Michael J. Sousa

Proceedings Volume 1566, Advanced Signal Processing Algorithms, Architectures, and Implementations II; (1991) https://doi.org/10.1117/12.49834
Event: San Diego, '91, 1991, San Diego, CA, United States

Abstract

This paper describes an efficient implementation of auxiliary constraints for a concurrent block least squares adaptive sidelobe canceller when a single array of sensors is used to form one or more main beams. The approach is to compute QR decomposition of the auxiliary data matrix and then send this information to main beam processors, where the constraints are applied using a blocking matrix and the individual residuals are computed. The blocking matrix can be chosen with special structure which is used to derive a new fast algorithm and architecture for constrained main beam processing that reduces the operation count from order n³ to order n², where n is the number of auxiliary sensors.

Citation Download Citation

Richard A. Games, Willard L. Eastman, and Michael J. Sousa "Fast algorithm and architecture for constrained adaptive sidelobe cancellation", Proc. SPIE 1566, Advanced Signal Processing Algorithms, Architectures, and Implementations II, (1 December 1991); https://doi.org/10.1117/12.49834

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