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      Narrowband Multipath Signal Reception Beamforming Algorithm Based on Anti-diagonal Unit Matrix

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          Abstract

          In multipath environment, the conventional Capon beamformer suffers from signal cancellation mainly because of the variation in phase differences (near ±π ) between the array output corresponding to the signal of interest and multipath interferences. To solve this problem, a novel beamforming method for multipath signal reception is proposed. This method uses an antidiagonal unit matrix to construct a new covariance matrix and a constrained steering vector. Then, the weighting vector is obtained based on the minimum variance distortionless response criterion and the array output is performed. The proposed method does not have to estimate the direction of arrival of multipath interferences and uncorrelated interferences; moreover, the array output can improve by adjusting the number of array elements. The simulations demonstrate the superior performance of the proposed method over the conventional Capon and multipath signal reception methods.

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          Author and article information

          Journal
          Journal of Radars
          Chinese Academy of Sciences
          01 April 2015
          : 4
          : 2
          : 192-198
          Affiliations
          [1 ] College of Navigation & Aerospace Engineering, Information Engineering University
          Article
          f62b73ff1ccc48e5acc2fb844d5838ee
          10.12000/JR14012
          2cd5ff12-209c-4b0e-a3cf-67d25c4b501a

          This work is licensed under a Creative Commons Attribution 4.0 Unported License. To view a copy of this license, visit http://creativecommons.org/licenses/by/4.0/

          History
          Categories
          Technology (General)
          T1-995

          Remote sensing,Electrical engineering
          Phase difference,Anti-diagonal unit matrix,Multipath,Beamforming

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