不同附加参数的POS辅助空三精度分析  

Precision Analysis of POS-supported Aerotriangulation Based on Different Additional Parameters

作　　者：张恒[1] 冯德俊[1] 

机构地区：[1]西南交通大学测量工程系,四川成都610031

出　　处：《地理空间信息》2013年第2期80-81,10,共2页Geospatial Information

基　　金：国家863计划重点资助项目(2008AA121301)

摘　　要：POS辅助空三的应用,能够减少传统空三中为加密所需野外控制点的联测工作量,缩短成图周期,降低成本;然而选择不同个数的附加参数,也会使得在POS辅助空三的过程中所采取的模型有所差异,所建立的误差方程式亦不同。因此,在对精度要求比较高的情况下,附加参数的选择就显得尤为重要。通过使用不同的附加参数来建立模型,分析造成其精度差异的原因并对参数的选择提出了建议。The application of the POS-supported aerotriangulation can not only effectively reduce the workload of field GCPs’ translocation in the traditional aerial triangulation,but also shortening the mapping cycle.However,in the process of POS-supported aerotriangulation,it may lead to different models and error equations by choosing diverse additional parameter.As a result,in the situation of highly required precision,it becomes such important by selecting additional parameters.In this paper,models were built by picking different additional parameters and analyzed reasons.And it may give some help on selecting additional parameters.

关 键 词：定位定姿系统 POS辅助空三 附加参数 精度分析 

分 类 号：P231.5[天文地球—摄影测量与遥感]