NDLI: Adaptive beamforming algorithms with robustness against steering vector mismatch of signals

Content Provider	IET Digital Library
Author	Liu, Jiangbo Xie, Wei Gui, Guan Zhang, Qing Zou, Yanbin Wan, Qun
Abstract	Three novel adaptive beamforming algorithms are developed to mitigate the steering vector (SV) random errors of both the desired signal and interferences. With the use of iterative robust Capon beamforming technique, each interference's SV is estimated first, and then the interference-plus-noise covariance matrix is reconstructed according to its definition. To accurately estimate the signal of interest's (SOI's) SV, the authors introduce three new methods, which are based on the techniques of the second-order cone programming, the eigendecomposition and the oracle approximating shrinkage. For the proposed beamformers, only the prior information about the array geometry and the SOI's angular sector are needed. The main advantage is that the proposed methods are robust against a variety of SV mismatches. Simulation results are presented to demonstrate the robustness and effectiveness of the proposed adaptive beamformers.
Starting Page	1831
Ending Page	1838
Page Count	8
ISSN	17518784
Volume Number	11
e-ISSN	17518792
Issue Number	Issue 12, Dec (2017)
Alternate Webpage(s)	https://digital-library.theiet.org/content/journals/iet-rsn/11/12
Alternate Webpage(s)	https://digital-library.theiet.org/content/journals/10.1049/iet-rsn.2017.0245
Journal	IET Radar, Sonar & Navigation
Publisher Date	2017-08-23
Access Restriction	Open
Rights Holder	© The Institution of Engineering and Technology
Subject Keyword	Adaptive Beamforming Array Geometry Array Signal Processing Covariance Matrices Eigen Values And Eigen Function Eigendecomposition Electromagnetic Compatibility Interference Interference-plus-noise Covariance Matrix Iterative Robust Capon Beamforming Linear Algebra Numerical Analysis Oracle Approximating Shrinkage Radio Frequency Interference Second-order Cone Programming Signal of Interest Signal Processing And Detection Signal Processing Theory SOI Angular Sector Steering Vector Interference Steering Vector Random Error Mitigation Steering Vector Signal Mismatch
Content Type	Text
Resource Type	Article
Subject	Electrical and Electronic Engineering

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