文档介绍：机载遥感直接对地定位的误差分析和精度估计*
尤红建江月松李树楷
(中国科学院遥感应用研究所,北京,100101)
ERROR ANALYSIS AND ACCURACY ESTIMATION OF AIRBORNE
REMOTE SENSING WITH AIR-TO-GROUND POSITIONING SYSTEM
You Hongjian Jiang Yuesong Li Shukai
(Institute of Remote Sensing Application, CAS,Beijing,100101)
Abstract Airborne 3D remote sensing information acquiring system which integrates GPS、 attitude measuring
sensor、scanning laser range-finder and remote sensor into plete remote sensing survey platform is a new
remote sensing system with air-to-ground directly positioning system, but each of these four sensors may have
error which can affect the geo-referenced 3D position. The basic theory of the air-to-ground positioning system
is briefed in this paper, specially we analyze the source of each error and its influence to the 3D positioning system,
and then we derive the general error equation of this remote sensing system from the error propagation law and http;//网
estimate its accuracy under different conditions, therefore we get some important conclusions.
Keywords Directly positioning,Error analysis,Accuracy estimation
摘要利用GPS、姿态测量装置、扫描激光测距及同步的遥感器组成的机载遥感三维信息获取
系统是新型的空地直接对地定位遥感系统,由于各种误差的存在而最终影响到三维定位结果。本
文简要说明了空地直接对地定位的基本原理、重点分析了各个误差项及其对定位结果的影响,并
进行了误差传播和精度估计,取得了重要的结论。
关键词直接定位误差精度估计
分类号 P31ht http;//网
1 遥感直接对地定位原理
图1 机载三维遥感对地定地位示意图
Illustration of 3D Remote Sensing with Air-to-ground Posit