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Indexed by:期刊论文

Date of Publication:2015-01-01

Journal:INTERNATIONAL JOURNAL OF SENSOR NETWORKS

Included Journals:SCIE、Scopus

Volume:19

Issue:3-4,SI

Page Number:171-180

ISSN No.:1748-1279

Key Words:array signal processing; vector sensor; beamforming; biquaternion; Capon; robustness

Abstract:A hypercomplex variant of Capon beamformer, called biquaternion Capon (BQ-Capon), is herein proposed for signal strengthening with four-component vector-sensor arrays. This BQ-Capon beamformer extracts the signal-of-interest (SOT) while rejecting interferences plus noise in a multiple-input-multiple-output (MIMO) fashion. Simulation results show that BQ-Capon beamformer outperforms the standard long-vector counterpart in convergence and sensitivity to mismatch in SOT steering vector.