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Extended Beamforming by Sum and Difference Composite Co-Array for Real-Valued Signals
Sho IWAZAKI Koichi ICHIGE
IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences
Publication Date: 2019/07/01
Online ISSN: 1745-1337
Type of Manuscript: PAPER
Category: Digital Signal Processing
adaptive beamforming, extended array signal processing, correlation matrix,
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We have developed a novel array configuration based on the combination of sum and difference co-arrays. There have been many studies on array antenna configurations that enhance the degree of freedom (DOF) of an array, but the maximum DOF of the difference co-array configuration is often limited. With our proposed array configuration, called “sum and difference composite co-array”, we aim to further enhance the DOF by combining the concept of sum co-array and difference co-array. The performance of the proposed array configuration is evaluated through computer simulated beamforming*.