TerraSAR-X卫星及其在地球科学中的应用  

TerraSAR-X SATELLITE AND ITS APPLICATIONS ON ERATH SCIENCE

作　　者：陈艳玲[1] 黄珹[1] 冯天厚[1] 

机构地区：[1]中国科学院上海天文台,上海200030

出　　处：《中国科学院上海天文台年刊》2007年第1期51-57,共7页Annals Shanghai Astronomical Observatory Chinese Academy of Sciences

摘　　要：2007年6月15日德国成功发射了TerraSAR-X卫星,即将提供高达1m分辨率的多模式、多极化的星载SAR数据,其设计寿命为5年。该文较全面、系统地介绍了这一现代高分辨率雷达卫星的有关情况,主要涉及它的科学目标、结构和设计参数,处理算法和基本产品类型,以及在地球科学中的应用等方面,冀期以此为我国开展相关领域的研究工作提供参考。TerraSAR-X is a new German little radar satellite that was just launched on Jun 15, 2007. The scheduled lifetime is 5 years. It carries a high frequency X-band SAR sensor that can be operated in different modes （resolutions） and polarization. TerraSAR-X will offer features that were not available from space geodesy before due to its high spatial resolution as high as 1 meter. This paper describes the advanced satellite systematically and completely. Firstly, the basic parameters, outer structure, imaging modes are illuminated in chapter 2. The sensor working in X-Band can operate in different operation modes, such as Spotlight, Stripmap, and ScanSAR mode, meanwhile it is able to provide interferometric radar data for the generation of DEM and deformation mapping. Secondly, the processing algorithms and products are listed in chapter 3. After the data is downlinked from the satellite, the DLR Payload Ground Segment for the TerraSAR-X then processes them step by step. The data processing includes pre-processing, CS （Chirp Scaling） imaging processing, radiometric and instrument phase calibration, muhilook and ScanSAR beam stitching, and geocoding etc. , which are all seen in chapter 4. Sequently, DLR can issue complex, ortho-rectified and geocoded data for the users. Those SAR data can be used in many science fields including topographic mapping, geology, land resources and environment management, hydrology and oceanography, etc. Finally the future of this satellite is briefly introduced.

关 键 词：天体测量 综述 TERRASAR-X SAR数据处理 SAR产品 地球科学 

分 类 号：P237[天文地球—摄影测量与遥感]