Release Time:2019-03-09  Hits:

Indexed by: Journal Article

Date of Publication: 2015-01-01

Journal: INTERNATIONAL JOURNAL OF SENSOR NETWORKS

Included Journals: Scopus、SCIE

Volume: 19

Issue: 3-4,SI

Page Number: 171-180

ISSN: 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.