低轨电子侦察卫星轨道高度与定位体制效能分析

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中图分类号：TN97 文献标志码：A

Analysisofefficiencywithheightofloworbitspaceborne ELINT location system

GUO Fucheng

（Collge of Electronic Science，National University of Defense Technology， Changsha 410073， Hunan，China）

Abstract： As the effect of orbit height of electronic intelligence（ELINT） satelite to the geometric cover area，to the minimum equivalent isotropic radiated power（EIRP）of emitter，of the borewidth of emitter，to the precision by diffrent sub-satellite distance is analyzed. The typical location error distributions ofsingle satellteangle of arrival（AOA） localization system，dual-satellte time differ ence of arrival（TDOA） and frequency difference of arrival（FDOA） localization system，tri-satelite TDOA localization system，tri-satelite TDOA and FDOA localization system are also studied，leading to relevant analytical conclusions.

Keywords：satellite;ELINT;location;error

0 引言

电子侦察卫星系统由于其站得高、看得远且不受国界、天气影响，可以实现对地球上电磁辐射源的广域侦察和监视，成为当代电磁态势感知获取的一种重要手段[1-4]。（剩余5091字）