测距空间交会定点模式求解问题探讨  

Discussion on Resolving The Problem of Distance-measuring Space Intersection Model

作　　者：冯遵德[1] 卢秀山[1] 郭英[1] 于志刚[1] 

机构地区：[1]山东科技大学地球信息科学与工程学院

出　　处：《矿山测量》2004年第3期29-31,4,共3页Mine Surveying

基　　金：地理空间信息工程国家测绘局重点实验室基础测绘经费资助项目 (批准号 :0 30 5 0 180 1)

摘　　要：文中对测距空间交会如何解算的问题分两种情况进行讨论。指出在仅有三个已知点的情况下解算要注意待定点坐标初值的选取 ;在较多已知点的情况下要注意交会图形对待定点精度的影响 ;当交会图形较差时 ,应采取有效的算法。文中介绍的基于矩阵的奇异值分解的广义逆法 ,经验证 ,效果较好。In the paper,resolving the problem of distance-measuring space intersection is discussed respectively in following two cases,one is that the selection of initial coordinate value of unknown point is required to be paid more attention to when there are only three known points,the other is that the effect of cross-plot on accuracy of unknown point is also required to be attached high importance to when there are many known points,and if the cross-plot is not good enough,an effective algorithm should be used. Furthermore,the method described in the paper,i.e. generalized matrix inverse of SVD (singular value decomposition),is proved to be comparatively good in effect.

关 键 词：测距空间交会 矩阵 广义逆法 

分 类 号：P208[天文地球—地图制图学与地理信息工程]