Abstract
In this paper, we present an adaptive beamformer based on recursive modified Gram-Schmidt (RMGS) algorithm. The beamformer has a highly modular structure, exhibits good numerical properties and is especially suitable for fixed point arithmetic and VLSI implementation. The error feedback form of RMGS algorithm improves the numerical accuracy of the conventional RMGS algorithm. The spatial smoothing scheme has also been implemented in time recursive form using RMGS algorithm to combat coherent jammers. Computer simulations confirm that the proposed beamformer has a superior interference rejection capability over existing adaptive beamformers.
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