用于GIS道路信息修测的动态GPS自适应滤波试验  

Experiments of adaptive filters for kinemetic GPS positioning applied in road information updating in GIS

作　　者：杨元喜[1] 唐颖哲[1] 李庆田[1] 邹逸江[1] 

机构地区：[1]西安测绘研究所,西安710054

出　　处：《测绘科学》2003年第4期9-11,共3页Science of Surveying and Mapping

基　　金：国家杰出青年基金项目 (4982 5 10 7);自然科学基金项目 (40 174 0 0 9和 4 0 2 74 0 0 2 )

摘　　要：利用车载GPS进行GIS道路信息修测与更新已在西安地区进行了试验。试验中使用了三种动态定位算法 ,即GPS接收机的随机软件、Sage滤波算法及新发展起来的抗差自适应滤波算法。试验表明 ,新的自适应抗差滤波不仅计算简单 ,而且能控制GPS伪距观测和载体状态异常扰动的影响。The experiments for the road,information updating in the geographical information system by using GPS receiver mounted on a vehicle have been performed in Xian area of China. The navigation software accompanied with the GPS receiver, Sage filtering method and a new developed adaptively robust Kalman filtering method are employed and compared in the experiments. It is shown by experiments that the new adaptively robust filtering is not only simple in calculation but also robust in controlling the influences of the outliers of the GPS pseudoranges and kinematic state disturbing of the vehicle.

关 键 词：Sage滤波 自适应估计 抗差估计 GPS伪距 GIS 

分 类 号：P208[天文地球—地图制图学与地理信息工程] P228[天文地球—测绘科学与技术]