Robust adaptive beamforming using low‐complexity correlation coefficient calculation algorithms. Issue 6 (1st March 2015)

• Record Type: Journal Article
• Authors: Chen, Fengfeng; Shen, Feng; Song, Jinyang
• Is Part Of: Electronics letters. Volume 51:Issue 6(2015)
• Page Start: 443
• Page End: 445
• Publication Date: 2015-03-01
• Subjects: array signal processing -- covariance matrices -- eigenvalues and eigenfunctions; low‐complexity correlation coefficient calculation algorithms -- reconstructed covariance matrix -- steering vector estimation -- spatial spectrum estimator -- interference‐plus‐noise -- IPN covariance matrix -- ASV estimation process -- eigenvectors -- robust adaptive beamforming method -- ASV imperfections -- signal‐to‐interference‐plus‐noise ratio -- SINR enhancement; Electronics -- Periodicals; 621.381
• DOI: 10.1049/el.2015.0263
• Languages: English
• ISSNs: 0013-5194

Abstract

Abstract : A robust adaptive beamforming technique based on a reconstructed covariance matrix and array steering vector (ASV) estimation using low‐complexity algorithms is proposed. The spatial spectrum estimator is used to reconstruct the interference‐plus‐noise covariance matrix and the ASV estimation process is used to calculate the correlation coefficients of the assumed ASV and the eigenvectors. Contrary to other robust adaptive beamforming methods, this approach has better performance yet does not involve any specific optimisation programme even if arbitrary ASV imperfections are considered. Simple implementation and significant signal‐to‐interference‐plus‐noise ratio enhancement support the practicability of the proposed method.