文章基本信息

标题：New Global Mars control point network
本地全文：下载
作者：Timm Ohlhof ; Wolfgang Zeitler ; Heinrich Ebner 等
期刊名称：ISPRS Annals of the Photogrammetry, Remote Sensing and Spatial Information Sciences
印刷版ISSN：2194-9042
电子版ISSN：2194-9050
出版年度：1998
卷号：XXXII Part 4
出版社：Copernicus Publications
摘要：This paper deals with the computation of a new global control point network of the planet Mars. The existing Mars control point net is basedon Viking data and consists of a large number of ground points, which can be easily identified in the imagery and whose 3-dimensionalobject coordinates (e.g. latitude 􀀀, longitude and height h w.r.t. a reference ellipsoid) are known. These coordinates were now determinedagain to eliminate several disadvantages of former computations and to include the currently best available input data like improvedViking trajectory information, the Viking occultation data, present rotational parameters and the Mars Pathfinder lander.Within a simultaneous 3D bundle block triangulation, 7 interior orientation parameters, the position and attitude parameters of 1140 imagesand the ground coordinates of 3739 tie points and 1 control point were estimated. The rms values 􀀀X, 􀀀Y , 􀀀Z of the theoretical standarddeviations of the adjusted object coordinates amount to 750 m, 770 m and 710 m, which is a significant improvement compared withformer results (1–5 km). The accuracy of the ground point coordinates is close to the theoretical accuracy limit of 520 m in X Y and Z,where error-free orientation parameters are assumed.This new set of orientation parameters and ground points may now be used for local, regional and global DTM generation, the determinationof reference bodies, mapping purposes as well as for current (Mars Global Surveyor 1996) and future (e.g. Mars Surveyor 1998 and2001, Mars Express 2003) missions to Mars
关键词：Mars; Viking; bundle block triangulation; control point network