静态和差波束匹配的空时自适应处理方法.pdf

2017年6月
西电子科技大学学报(自然科学版
Jun.2017
第44卷第3期
JOURNAL OF XIDAN UNIVERSITY
doi:10.3969/j,issa.1001-2400.2017.03.024
静态和差波束匹配的空时自适应处理方法
刘斌,何广军',冯有前2,杨科,许京伟
(1.空军工程大学防空反导学院,陕西西安710051;2.空エ程大学理学院,陕西西安710051;
上海无线电迓备研究所,上海20090;4.西安电子科技大学雷达信号处理国家重点实验堂,陕西西
安710071)
摘要:传统空时自适应处理方法的和差波東参数估计面临角度多普物参数帮合的间题,当存在目标信号
污染时,参数伎计性能急剧恶化笔者提出了一种基于静态和差波東匹配的空时自适应处理方法,通过采
用度和相位响应的联合约東,使得自适应后的和差波東逼近静态和差波柬主舞区城的幅度和相位响应
特性,进而实现自适应和差波東主瓣保形,克辰目标污染等因素造咸的主辉畸变现象,同时保持角度多普
无合的特性,仿真实验验了所提方法的有效性
关键词:空时自适应处理;和差波東形成;角度多普佔计;幅度和相位响应
中图分类号:TN957.52文献标识码:A文章编号:1001-2400(2017)03-0138-06
Static sum-and-difference beam matched STAP method
LIU Bin=, HE Guangjun, FENG Yougian, YANG Ke, XU Jingwei
1. College of Air and Missile Defense, Air Force Engineering Univ, Xian 710051, China; 2 Ccllege of
Science, Air Force Engineering Univ, Xi 710051, China; 3. Shanghai Radio Equipment Research
Institute, Shanghai 200090, China; 4. National Key Lab. of Radar Signal Processing, Xidian Univ
xi'an710071,
Abstract: In traditional space-time adaptive processing(ST AP) radars, angle and Doppler parameters are
coupled with the adaptive sum and difference technique. Moreover, the parameter estimation performance
degrades dramatically if the target signal is included in the training support. In this paper, we propose a
novel static sum-and-difference beams matched STAP method. In our approach, the constraint is designed
by incorporating both the magnitude and phase responses. The adapted beampattern is forced to be close to
that of the static sum-and-difference beams in magnitude and phase response, and thus the mainbeam of the
adaptive sum-and-difference beams is well maintained. As a result, the target cancelation due to tl
presence of the desired target in the training support can be alleviated. The angle
ure decoupled since the static sum-and-difference beams are independent in angle and Doppler domai
Simulation examples are presented to demonstrate the effectiveness of the proposed method
Key Words: space-time adaptive processing; sum-and-difference beams; angle Doppler parameters
:stimation; magnitude and phase responses
空时自适应处理( Space-iime Adaptive Processing,STAP)联合空间与时二维信息,能够检测淹没于
杂波宵景中的徽弱信号,在机载预警雷达中具有重要的应用价值自适应单脉冲测角技术能够大大地提高
STAP雷达目标参数估计的精度2.文献[3]介绍了STAP雷达的传统单脉冲技术,该技术基于模拟和差波
束数据进行后续处理.实际上,阵列雷达可以采用数字方法设计和差波束.文献[4通过施加合理的约束将自
适应单脉冲技术应用到STAP雷达
收日期:2016-05-26
络出版时间:2016-12-04
作简介:刘斌(1991-),男,空军工程大学硕士研究生,E-mai]:2770879@qq,c0m
网络出版地址:htp:/www.cnki,neu/kcms/detail/61.1076.TN.20161204.0227,、048.html
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