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A robust algorithm for linearly constrained adaptive beamforming

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3 Author(s)
Qiyue Zou ; Sch. of Electr. & Electron. Eng., Nanyang Technol. Univ., Singapore, Singapore ; Zhu Liang Yu ; Zhiping Lin

A new approach to robust adaptive beamforming for wideband array signals is proposed. General steering vector errors, such as direction-of-arrival mismatch and array positional error, are modeled by "time-delay errors" and compensated for by self-adjusted interpolation filtering. The proposed method effectively overcomes the target-signal cancellation problem without suffering from loss in the degree of freedom for interference rejection, as verified by simulations.

Published in:

Signal Processing Letters, IEEE  (Volume:11 ,  Issue: 1 )