Modular implementations of linearly constrained beamformers

Tsung-Ching Liu; Barry D. Van Veen

doi:10.1117/12.49841

1 December 1991 Modular implementations of linearly constrained beamformers

Tsung-Ching Liu, Barry D. Van Veen

Proceedings Volume 1566, Advanced Signal Processing Algorithms, Architectures, and Implementations II; (1991) https://doi.org/10.1117/12.49841
Event: San Diego, '91, 1991, San Diego, CA, United States

Abstract

This paper describes a cascade decomposition of the generalized sidelobe canceller (GSC) implementation for linearly constrained minimum variance beamformers. The GSC is initially separated into an adaptive interference cancellation module followed by a non-adaptive beamformer. We prove that the adaptive interference cancellation module can be decomposed into a cascade of first (or higher) order adaptive interference cancellation modules, where the order corresponds to the number of adaptive degrees of freedom represented in the module. This distributes the computational burden associated with determining the adaptive weights over several lower order problems and facilitates simultaneous implementation of beamformers with differing numbers of adaptive degrees of freedom.

Citation Download Citation

Tsung-Ching Liu and Barry D. Van Veen "Modular implementations of linearly constrained beamformers", Proc. SPIE 1566, Advanced Signal Processing Algorithms, Architectures, and Implementations II, (1 December 1991); https://doi.org/10.1117/12.49841

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