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Journal of Electrical and Computer Engineering
Volume 2016, Article ID 7912364, 7 pages
http://dx.doi.org/10.1155/2016/7912364
Research Article

Design of Fixed Wideband Beamformer through Improved Maximum Energy Approach

School of Electronics and Information, Northwestern Polytechnical University, Xi’an, Shaanxi 710072, China

Received 9 March 2016; Revised 10 May 2016; Accepted 26 May 2016

Academic Editor: George Tsoulos

Copyright © 2016 Rui Du et al. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

Abstract

A maximum energy approach is investigated in this paper to design fixed wideband beamformer. This approach has been improved by integrating response variation (RV) into the target function to maintain the frequency invariant property of wideband beamformer over the whole passband. Two methods for designing null to suppress interference signal also have been proposed to make the wideband beamformer robust in complicated environment. Comparisons among other methods are provided to illustrate the effectiveness and enhancement of performance of the new approaches.