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Modified Generalized Sidelobe Canceller for Nonuniform Linear Array Radar Space-Time Adaptive Processing

Xiang ZHAO, Zishu HE, Yikai WANG, Yuan JIANG

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Summary :

This letter addresses the problem of space-time adaptive processing (STAP) for airborne nonuniform linear array (NLA) radar using a generalized sidelobe canceller (GSC). Due to the difficulty of determining the spatial nulls for the NLAs, it is a problem to obtain a valid blocking matrix (BM) of the GSC directly. In order to solve this problem and improve the STAP performance, a BM modification method based on the modified Gram-Schmidt orthogonalization algorithm is proposed. The modified GSC processor can achieve the optimal STAP performance and as well a faster convergence rate than the orthogonal subspace projection method. Numerical simulations validate the effectiveness of the proposed methods.

Publication
IEICE TRANSACTIONS on Fundamentals Vol.E101-A No.9 pp.1585-1587
Publication Date
2018/09/01
Publicized
Online ISSN
1745-1337
DOI
10.1587/transfun.E101.A.1585
Type of Manuscript
LETTER
Category
Digital Signal Processing

Authors

Xiang ZHAO
  University of Electronic Science and Technology of China
Zishu HE
  University of Electronic Science and Technology of China
Yikai WANG
  University of Electronic Science and Technology of China
Yuan JIANG
  University of Electronic Science and Technology of China

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