Extended Beamforming by Sum and Difference Composite Co-Array for Real-Valued Signals

Sho IWAZAKI  Koichi ICHIGE  

Publication
IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences   Vol.E102-A   No.7   pp.918-925
Publication Date: 2019/07/01
Online ISSN: 1745-1337
DOI: 10.1587/transfun.E102.A.918
Type of Manuscript: PAPER
Category: Digital Signal Processing
Keyword: 
adaptive beamforming,  extended array signal processing,  correlation matrix,  

Full Text: PDF(1012.7KB)>>
Buy this Article




Summary: 
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*.