单站航路机动对纯距离目标定位精度影响分析  

Effect of single observer maneuvering trajectory on localizing precision in range-only target location

作　　者：王璐[1] 刘忠[1] 夏清涛[1] 

机构地区：[1]海军工程大学电子工程学院,湖北武汉430033

出　　处：《华中科技大学学报（自然科学版）》2015年第8期58-61,共4页Journal of Huazhong University of Science and Technology(Natural Science Edition)

基　　金：总装备部预研基金资助项目(9140A01060113JB11001)

摘　　要：针对单观测站航路机动对纯距离目标定位精度的影响问题,在目标定位跟踪精度下限的基础上,使用精度几何散布作为性能评估指标,采用最小二乘算法进行仿真实验,分析了观测站在一次转向航路和匀速转弯航路时,对静止目标定位精度的影响.仿真结果表明:纯距离观测条件下,观测站不同机动航路对目标定位精度有很大影响,可以通过选择合适的机动航路来改善定位跟踪算法的性能,提高纯距离系统对目标的定位精度.For the problem of positioning and tracking precision in range‐only target motion analysis for single observer ,based on target position tracking lower limit CRLB （cramer‐rao lower bound） , the geometric dilution of precision （GDOP） was taken as the optimal performance indicator .When the observer moved in uniform linear motion with one turning action and in uniform circular motion ,the influence of the route of observer on the target location precision were analyzed by least square algo‐rithm .The simulation results indicate that the observer route has great impact on the target location precision with range‐only measurement ,so a suitable observer route can be chose to improve the per‐formance of the position and tracking algorithm and the target location precision .

关 键 词：目标定位 定位精度 航路机动 纯距离 系统仿真 

分 类 号：TN953[电子电信—信号与信息处理] TP391.9[电子电信—信息与通信工程]