A Class of Robust Adaptive Beamforming Algorithms for Coherent Interference Suppression

Based on the Uniform Linear Array (ULA) and the spatial-smoothing technique, a robust beamforming problem for the reception of coherent signals is addressed and a Forward-Only (FO) beamformer is proposed based on worst-case optimization by considering both the steering vector and the correlation matrix errors. It is then extended to the Forward-Backward (FB) case with an improved performance. By introducing a preprocessing matrix, real-valued closed-form solutions are then derived with the same performance as in the FB case, but with much lower computational complexity. Simulations verified the effectiveness of the proposed algorithms.

Provided by: EURASIP Topic: Mobility Date Added: Aug 2012 Format: PDF

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