航迹间断情况下坐标系对融合跟踪影响的仿真分析  

Simulation Analysis of Coordinate Influence on Fusion with Discontinued Track

作　　者：刘卫华[1] 谭顺成[2] 

机构地区：[1]海军航空工程学院科研部,烟台264001 [2]海军航空工程学院信息融合研究所,烟台264001

出　　处：《舰船电子工程》2015年第1期47-51,77,共6页Ship Electronic Engineering

基　　金：国家自然科学基金项目(编号:61179018;61102165;61102167)资助

摘　　要：研究了雷达航迹和数据链航迹间断情况下,北东地(NED)坐标系和地心地固(ECEF)坐标系对融合跟踪的影响。利用不敏变换(UT)将NED坐标系下的量测值转换到ECEF坐标系,然后对两种坐标系下的融合跟踪精度进行实验仿真,并对不同仿真场景下的算法性能进行分析和对比,得出一些有益的结论。The influence of north east down（NED） coordinate and earth centered earth fixed（ECEF） coordinate on fu‐sion with discontinued tracks of radar and data link was researched .Measurements under the NED coordinate were trans‐formed to ECEF coordinate by utilizing the unscented transformation（UT） ,tracking performs under the two different coordi‐nates were analyzed and compared by simulations ,and some useful conclusions were obtained .

关 键 词：航迹融合 不敏变换 间断航迹 数据链 

分 类 号：TN953[电子电信—信号与信息处理]