中国空间科学技术
中國空間科學技術
중국공간과학기술
CHINESE SPACE SCIENCE AND TECHNOLOGY
2014年
6期
8-14
,共7页
径向速率估值%数据关联%双屏电子篱笆%空间目标监视
徑嚮速率估值%數據關聯%雙屏電子籬笆%空間目標鑑視
경향속솔고치%수거관련%쌍병전자리파%공간목표감시
Estimating Doppler velocity%Data association%Double fence radar%Space obj ect surveillance
针对双屏电子篱笆系统在初轨确定前需要完成同一目标观测数据的数据关联问题,文章提出了一种计算形式简单且不依赖于循环迭代定轨计算径向速率的估值方法,并设计了相应的数据关联准则。仿真分析表明,这种数据关联准则与依赖定轨计算径向速率的关联方法相比,判别正确率相近,但计算时间不到后者的10%,算法的效率更高。
針對雙屏電子籬笆繫統在初軌確定前需要完成同一目標觀測數據的數據關聯問題,文章提齣瞭一種計算形式簡單且不依賴于循環迭代定軌計算徑嚮速率的估值方法,併設計瞭相應的數據關聯準則。倣真分析錶明,這種數據關聯準則與依賴定軌計算徑嚮速率的關聯方法相比,判彆正確率相近,但計算時間不到後者的10%,算法的效率更高。
침대쌍병전자리파계통재초궤학정전수요완성동일목표관측수거적수거관련문제,문장제출료일충계산형식간단차불의뢰우순배질대정궤계산경향속솔적고치방법,병설계료상응적수거관련준칙。방진분석표명,저충수거관련준칙여의뢰정궤계산경향속솔적관련방법상비,판별정학솔상근,단계산시간불도후자적10%,산법적효솔경고。
The observation data association of the same obj ect before computing the initial orbit is a crucial problem for the double fence radar system.An estimating Doppler velocity method was proposed, which was independent of initial orbit determination with iteration computation,and a corresponding data association rule was designed.The simulation analysis shows that the exactness of the proposed data association rule is similar with that of the rule which is dependent on the Doppler velocity computed by the orbit determination, but the computing time is less than 10% of the latter one.