POTENTIAL OF CARTOSAT-I IMAGES FOR TOPOGRAPHIC MAPPING

摘要

The Cartosat-1 Earth observation satellite, also known as IRS-P5, was launched by the Indian Space Research Organization (ISRO) on May 5, 2005, to meet the increasing demand for large-scale topographic mapping and terrain modelling applications To meet these requirements Caitosat-1 carries two panchromatic CCD sensors, the PAN Fore (+26°) and the PAN Aft (-5°), which generate along-track stereoscopic images of the area. The camera sensors provide high-resolution, near-instantaneous stereo data with identical radiometric properties and with a ground spatial resolution of 2.5 m, The stereo-pairs have a swath of about 26 km and a B/H ratio of 0.62,, The CCD sensor consists of staggered arrays with 12000 lxva x 7|im elements. Key parameters of the Cartosat-1 satellite are given in Table 1.