波形分集阵雷达抗欺骗式干扰技术

doi:10.3969/j.issn.0372-2112.2019.03.005

电子学报 ›› 2019, Vol. 47 ›› Issue (3): 545-551.DOI: 10.3969/j.issn.0372-2112.2019.03.005

波形分集阵雷达抗欺骗式干扰技术

许京伟^1,3, 廖桂生¹, 张玉洪², 苏庆祥³

1. 西安电子科技大学雷达信号处理国家重点实验室, 陕西西安 710071;
2. 西安电子科技大学电子工程学院, 陕西西安 710071;
3. 香港城市大学电子工程系, 香港

收稿日期:2018-03-23 修回日期:2018-05-18 出版日期:2019-03-25
- 通讯作者:
- 许京伟
- 作者简介:
- 廖桂生 男,1963年6月生于广西桂林,现为西安电子科技大学雷达信号处理国家重点实验室教授,博士生导师.国家自然科学基金委创新群体负责人、国家杰出青年科学基金获得者、教育部长江学者特聘教授、长江学者奖励计划创新团队"雷达信号处理"负责人、入选首批"新世纪百千万人才工程国家级人选"、陕西省有突出贡献专家,享受国务院政府特殊津贴.现任电子工程学院院长.现主要从事雷达探测系统设计与信号处理技术研究,包括新体制阵列雷达技术、雷达通信一体化技术等.E-mail:liaogs@xidian.edu.cn;张玉洪 男,1958年5月生于江苏,现为西安电子科技大学特聘教授.主要研究方向为阵列信号处理、微波遥感与成像、信号建模与仿真、波形分集技术等.E-mail:yuhzhang@xidian.edu.cn;苏庆祥 男,1968年6月生于中国香港,现为香港城市大学电子工程系教授,IEEE Fellow,主要研究方向为信号处理理论与方法、频谱分析与参数估计等.E-mail:hcso@ee.cityu.edu.hk
- 基金资助:
- 国家自然科学基金 (No.61601339）; 香江学者计划 (No.XJ2017027）; 航空科学基金 (No.20160181001）; 上海航天科技创新基金 (No.SAST2017-070）

On Anti-jamming Technique with Waveform Diverse Array Radar

XU Jing-wei^1,3, LIAO Gui-sheng¹, ZHANG Yu-hong², SO Hing-cheung³

1. National Key Laboratory of Radar Signal Processing, Xidian University, Xi'an, Shaanxi 710071, China;
2. School of Electronic Engineering, Xidian University, Xi'an, Shaanxi 710071, China;
3. Department of Electronic Engineering, City University of Hong Kong, Hong Kong, China

Received:2018-03-23 Revised:2018-05-18 Online:2019-03-25 Published:2019-03-25

摘要/Abstract

摘要： 本文从单基地雷达抗干扰的应用需求出发，分析了现有单基地雷达体制抗干扰的现状以及面临的困难.针对欺骗式干扰对抗的难题，提出了基于新体制波形分集阵雷达的抗主瓣方向欺骗式干扰思路，利用频率分集阵（Frequency Diverse Array，FDA）多输入多输出（Multiple-Input Multiple-Output，MIMO）雷达发射维自由度，实现真实目标和转发假目标在发射维度的区分，在部分先验知识的条件下，初步论证了FDA-MIMO雷达抗欺骗式干扰特别是主瓣欺骗式干扰的可行性.同时考虑转发式欺骗干扰在时间维的伪随机特性，提出了基于多假设检验的干扰样本挑选方法，大大提高了干扰协方差矩阵的估计性能.最后给出了FDA-MIMO雷达抗主瓣欺骗式干扰的分析与仿真结果.

关键词: 波形分集阵, 雷达抗干扰, 主瓣欺骗式干扰, 抗干扰原理, 发射维自由度

Abstract: This work is motivated by the increasing demand on anti-jamming techniques in radar systems.The current challenging issues on the anti-jamming task in conventional radar frameworks are outlined. Focused on deceptive jamming countermeasure issue,a novel framework,referred to as waveform diverse array (WDA) radar,is proposed to address the anti-jamming problem.Utilizing the additional degrees-of-freedom (DOFs) in transmit spatial frequency in frequency diverse array (FDA) multiple-input multiple-output (MIMO) radar,the true target and repeated false target can be isolated in the transmit spatial frequency domain.Moreover,this paper investigates the feasibility by using the suggested FDA-MIMO radar to suppress the deceptive jamming signals,even those from the mainlobe direction,with help of some information on true target obtained in earlier detection stage.In consideration of the random distribution of repeated false target in time domain,a jamming signal sample selection approach based on multi-hypothesis test is proposed,which evidently improves the estimation accuracy of jamming covariance matrix.Further analysis and simulation results are provided to confirm the effectiveness of the proposed waveform diverse array technique.

Key words: waveform diverse array, radar anti-jamming, mainlobe deceptive jamming, anti-jamming principle, transmit degrees-of-freedom

中图分类号:

TN958.5

许京伟, 廖桂生, 张玉洪, 苏庆祥. 波形分集阵雷达抗欺骗式干扰技术[J]. 电子学报, 2019, 47(3): 545-551.

XU Jing-wei, LIAO Gui-sheng, ZHANG Yu-hong, SO Hing-cheung. On Anti-jamming Technique with Waveform Diverse Array Radar[J]. Acta Electronica Sinica, 2019, 47(3): 545-551.

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波形分集阵雷达抗欺骗式干扰技术

On Anti-jamming Technique with Waveform Diverse Array Radar

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