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均匀圆阵DOA估计的抗干扰预处理
引用本文:申正义,陈昌孝,王广学. 均匀圆阵DOA估计的抗干扰预处理[J]. 空军雷达学院学报, 2009, 23(5): 353-355. DOI: 10.3969/j.issn.1673-8691.2009.05.012
作者姓名:申正义  陈昌孝  王广学
作者单位:1. 空军雷达学院陆基预警监视装备系,武汉,430019
2. 空军雷达学院信息对抗系,武汉,430019
3. 国防科技大学研究生院,长沙,410073
摘    要:针对许多置零预处理方法不能应用于圆形阵列的问题,利用傅立叶变换,提出一种基于函数拟合理论的均匀圆阵抗干扰预处理方法,并将该方法运用于MUSIC算法中.该方法可以在获得最小干信比的同时获得最大信噪比.仿真实验验证了该方法较之现有方法的优越性.

关 键 词:均匀圆阵  MUSIC算法  波束预处理  抗干扰

Anti-jamming Preprocessing of DOA Estimation Based on Uniform Circular Array
SHEN Zheng-yi,CHEN Chang-xiao,WANG Guang-xue. Anti-jamming Preprocessing of DOA Estimation Based on Uniform Circular Array[J]. Journal of Air Force Radar Academy, 2009, 23(5): 353-355. DOI: 10.3969/j.issn.1673-8691.2009.05.012
Authors:SHEN Zheng-yi  CHEN Chang-xiao  WANG Guang-xue
Affiliation:SHEN Zheng-yi, CHEN Chang-xiao, WANG Guang-xue (1.Department of Land-based Early Warning Surveillance Equipment, AFRA, Wuhan 430019, China; 2. Department of Electronic Information Countermeasures, AFRA, Wuhan 430019, China; 3. College of Graduates, National Univ. of Defense Technology, Changsha 410073, China)
Abstract:Aimed at the problem that many methods of zero-setting preprocessing can not be applied to circular array, a method of uniform circular array anti-jamming preprocess based on the function fitting theory was proposed by using Fourier transform, and the method was applied to the MUSIC algorithm, by which the maximum S/N ratio could be obtained while the minimum US ratio being achieved. By simulation it is verified that the proposed method is superior to the existing one.
Keywords:uniform circular array  MUSIC algorithm  beam preprocessing  anti-jamming
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