摘要
卫星干扰源定位能够被动接收干扰源信号,以卫星为平台对广域的电磁空间进行监视。传统的干扰源定位方法往往在干扰源高程已知的假设下进行定位算法设计,在实际应用中,尤其当干扰源高程较大时,存在较大的定位误差。针对这一问题,提出了高低轨场景的干扰源三维位置定位方法。利用低轨卫星过顶期间测量得到的多个时差测量值,构建高低轨时差定位方程组,并基于牛顿迭代法推导了迭代公式,设计了工程化定位步骤。仿真实验基于STK工具,构建了实际的高低轨定位场景,并进行了定位精度仿真和影响因素分析,验证了所提方法的有效性和稳健性。
Satellite interference source localization can passively receive the interference source signals and monitor the wide-area electromagnetic space based on the satellite platform.However,traditional interference source localization methods often design the localization algorithm under the assumption that the interference source elevation is known.In practical applications,especially when the interference source elevation is large,the traditional localization method has a large positioning error.To solve this problem,a three-dimensional position localization method of interference sources in high-and-low orbit scenario is proposed.The method uses the multiple time-difference-of-arrivals(TDOA)obtained during the overhead passage of low-orbit satellites to construct a set of high-and-low orbit time difference positioning equations.Based on the Newton iteration method,the iterative formula is deduced,and the engineering positioning steps are designed.The simulation experiment based on the STK tool constructs the actual high-and-low orbit positioning scenario.Positioning accuracy simulation and influencing factor analysis are carried out to verify the effectiveness and the robustness.
作者
陈兵
邵芳
戴欧志雄
霍立寰
柏如龙
黄鹏辉
CHEN Bing;SHAO Fang;DAIOU Zhixiong;HUO Lihuan;BAI Rulong;HUANG Penghui(The 54th Research Institute of CETC,Shijiazhuang 050081,China;Hebei Key Laboratory of Electromagnetic Spectrum Cognition and Control,Shijiazhuang 050081,China;Unit 32027,PLA,Kaifeng 475000,China;School of Electronic Information and Electrical Engineering,Shanghai Jiao Tong University,Shanghai 200240,China)
出处
《无线电工程》
北大核心
2022年第6期1013-1017,共5页
Radio Engineering
基金
中央引导地方科技发展资金项目(科技创新基地项目)(206Z0701G)。
关键词
高低轨
无源定位
干扰源
high-and-low orbit
passive localization
interference source
