现代雷达2024,Vol.46Issue(1) :16-20.DOI:10.16592/j.cnki.1004-7859.2024.01.003

基于超视距的外辐射源信号提取在被动探测中的应用分析

The Application Analysis in the Passive External Illuminator Radar Based on Extraction of OTH′s External Illuminator Signal

李圣衍 朱旭东 吴久涛 江涛
现代雷达2024,Vol.46Issue(1) :16-20.DOI:10.16592/j.cnki.1004-7859.2024.01.003

基于超视距的外辐射源信号提取在被动探测中的应用分析

The Application Analysis in the Passive External Illuminator Radar Based on Extraction of OTH′s External Illuminator Signal

李圣衍 1朱旭东 1吴久涛 1江涛1
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作者信息

  • 1. 南京电子技术研究所,江苏 南京 210039
  • 折叠

摘要

目前外辐射源雷达主要以接收辐射源的直达波信号为主,该方式提取的直达波信号信噪比高,利于后续目标信号检测和处理,但需要收发站通视,对直达波天线架高有要求,这极大地限制了该体制的应用.基于此,文中提出在沿海低海拔条件下,利用超视距侦察截获辐射源信号成为非合作探测的基准信号的思路,分析了其探测机理,和理论误差模型,并结合工程实际,提出了可实现的工程样机,分析了性能指标,给出了仿真结果.结果表明该思路可以应用在后续的工程实践上.

Abstract

Currently external illuminator radar use chiefly direct-arrival-wave received.The SNR of direct-arrival-wave extracted by this mode is large.It is profitable to detection and process of target signal,but It is necessary that the receiving station and trans-mitting station are visual in-the-horizontal and the receiving antenna of direct-arrival-wave installed highly is required,this struc-ture application is large limited.Because of it,the idea that the signal by receiving illuminator signal in-the-horizontal in the height above sea level along sea zone become standard signal of external illuminator detective is proposed,and the detective mechaniza-tion、theory error model is analyzed,and combine actual engineering,realizable engineering sample machine is provided,property quota is analyzed,simulation fruit is provided,result indicate that the structure may apply subsequent projects.

关键词

外辐射源/外辐射源探测/定位椭圆/直达波/超视距

Key words

external illuminator/external illuminator detective/location ellipse/direct-arrival-wave/over the horizontal

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出版年

2024
现代雷达
南京电子技术研究所

现代雷达

CSTPCD北大核心
影响因子:0.568
ISSN:1004-7859
参考文献量14
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