期刊名称：Archiwum Fotogrametrii, Kartografii i Teledetekcji
印刷版ISSN：2083-2214
出版年度：2008
卷号：18
语种：English
出版社：Main Board of Association of Polish Surveyors
摘要：TerraSAR-X,a German satellite,works in three modes: SpotLight (SL),StripMap (SM),and ScanSAR (SS) with maximum azimuth resolutions of 1,3,and 16 m,respectively. The images are distributed both in raw a raw or a georeferenced format. Due to the variety of products,it has been claimed that the geometry of those images should be investigated. The first part of the paper presents verification of geometric precision of geocoded products generated by the distributor. Images at the EEC (Enhanced Ellipsoid Corrected) and GEC (Geocoded Ellipsoid Corrected) levels were examined. The EEC product affected by the terrain heights,while the GEC product is affected by the mean height of terrain. Two test areas were selected: one in Kozienice,with SM mode images and the other in Wroclaw,with SL images. Control points were collected on reference orthophotomaps from the IRS-P6 satellite and with an ADS-40 airborne digital camera. The results showed the GEC product to have a low accuracy, while the EEC products are of a high accuracy (RMS error of 3-4 pixels). The second part of the paper presents orthorectification results for the Wroclaw test area.A raw image in the SSC format was used. It was shown that,with 10 control points and a SAR model correction both in azimuth and slant range direction,the accuracy of 2 pixels can be achieved. Verification of TerraSAR-X geometry accuracy formed a part of a project carried out in cooperation with the Geosystems Polska,the distributor of TerraSAR-X images from Poland. All the work was conducted in the ErdasImagine environment.
其他摘要：Mikrofalowy sensor satelity TerraSAR-X umoĪliwia pozyskanie caáej gamy róĪnorodnych produktów mogących znaleĨü zastosowanie w zarządzaniu kryzysowym, kartografii,hydrologii,rolnictwie,leĞnictwie i geologii. Artykuá prezentuje wyniki analizy dokáadnoĞci ge
