Direction-finding of coherent signals based on cylindrical vector-hydrophones array

被引：5
作者：
Tao, Jian-Wu [1 ]
Chang, Wen-Xiu [2 ]
Cui, Wei [1 ]
机构：
[1] Aviat Univ AF, Dept Control Engn, Changchun 130022, Jilin, Peoples R China
[2] Jilin Univ, Coll Commun Engn, Changchun 130025, Jilin, Peoples R China
来源：
SIGNAL IMAGE AND VIDEO PROCESSING | 2010年 / 4卷 / 02期
基金：
中国国家自然科学基金;
关键词：
Coherent signal; Vector-hydrophone smoothing algorithm; Direction of arrival estimation; Cylindrical arrays; OF-ARRIVAL ESTIMATION; SENSOR ARRAY; PERFORMANCE ANALYSIS; DOA ESTIMATION; ESPRIT;
D O I：
10.1007/s11760-009-0113-8
中图分类号：
TM [电工技术]; TN [电子技术、通信技术];
学科分类号：
0808 ; 0809 ;
摘要：
In this paper, a new "particle-velocity-field and spatial smoothing" (PVFSS) algorithm is proposed for direction-finding of coherent signals, using the cylindrical vector-hydrophones array in the underwater acoustic medium. In contrast to the customary "spatial smoothing" technique, it provides a smaller reduction in the overall array's spatial aperture. While in contrast to the "particlevelocity-field smoothing" technique, it may increase the number of decorrelate-able coherent signals. Moreover, an ESPRIT-based, closed-form direction-finding algorithm is proposed and a method of removing cyclic ambiguity is provided. Finally, the theoretical performance of the proposed algorithm is analyzed. Simulation results are shown to verify the efficacy of the proposed algorithm.
引用
收藏
页码：221 / 232
页数：12
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