基于窗口速度平滑伪距的遥感平台定位算法  

Positioning Algorithm Based on Velocity Smoothing Pseudo-ranges with Window for Remote Sensing Platform

作　　者：韦林海 徐卫明[2] 殷晓冬[2] 

机构地区：[1]92001部队 [2]海军大连舰艇学院海洋测绘科学与工程系

出　　处：《海洋测绘》2012年第3期11-14,共4页Hydrographic Surveying and Charting

基　　金：国家自然科学基金项目(61071006);测绘遥感信息工程国家重点实验室开放基金项目(10P03);辽宁省博士科研启动基金项目(20101130)

摘　　要：对浮空器遥感平台进行精密的控制定位是其完成对地观测、中继通信以及环境遥感等任务的关键。在自主地面测控系统对浮空器平台跟踪定位的基础上,给出加窗径向速度平滑伪距的多站跟踪定位方法。仿真结果表明:在GDOP值超过6的情况下,利用加窗速度平滑伪距方法仍能改善遥感平台定位的精度,而且能够有效地削弱测距链路中粗差的影响,从而自主地根据近地空间环境对浮空器进行控制。Lighter-than-air vehicles （ LTA）, i. e. , typically remote sensing platform, were widely used for the earth observation, relay communication, environmental remote sensing, etc. To accomplish above-mentioned commissions, one of the key techniques was vehicles positioning and tracking. This paper implemented the tracking mission of LTA through the multi-ground-based control station technology and presented a tracking method by the radial velocity smoothing pseudo-range with window. Simulation results show that although the positioning geometric dilution of precision （GDOP） is larger than 6, the proposed method may improve the positioning precision as well as reduce the tracking influence of LTA affected by the measure gross error, consequently, the LTA may achieve autonomous control capability for trajectory according to space environment.

关 键 词：浮空器 测控 定位 最小二乘 加窗速度平滑伪距 

分 类 号：P237[天文地球—摄影测量与遥感]