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首页> 外文会议>Conference on SAR Image Analysis, Modeling, and Techniques VI; Sep 8, 2003; Barcelona, Spain >TerraSAR-L System
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TerraSAR-L System

机译：TerraSAR-L系统

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The Infoterra/TerraSAR initiative started as an industrial concept to provide X- and L-band SAR data products from a pair of spacecraft in Sun-synchronous orbit. The mission was proposed by the BNSC and DLR for implementation as an element of the ESA's Earth Watch programme. The X-band element evolved into a German national programme between DLR and Astrium GmbH, whereas the TerraSAR-L System has become the subject of a phase B consolidation study led by Astrium Ltd. in the UK and involves companies in several other ESA member states. The TerraSAR-L System comprises a single spacecraft carrying a large, fully polarimetric L-band SAR, and a ground segment architecture that will re-use existing facilities and technologies as much as possible. The service segment, sized to meet the mission's requirements, complements this. Besides having a commercial role for the provision of geo-information products, the TerraSAR-L System will serve the scientific user community, particularly with regard to Earth science use, and for contributions to the GMES initiative. Specification of the L-SAR instrument and ground segment performances has been guided by careful analysis of the product requirements so as to meet the user communities' needs without over-design of the hardware. Extensive trade-off studies have proven that the L-band spacecraft should adopt the innovative 'Snapdragon' configuration, minimizing technical risk and cost whilst offering comfortable design margins. The TerraSAR Consolidation has commenced and will involve a wide industrial community in the specification and definition for the TerraSAR-L System. Key instrument and Snapdragon risk reduction activities are well advanced under ESA contract, with completion expected in 2004.
机译：Infoterra / TerraSAR计划最初是一项工业概念，旨在从太阳同步轨道上的一对航天器提供X波段和L波段SAR数据产品。该任务是由BNSC和DLR提议实施的，是ESA地球观察计划的一部分。 X波段元素已发展成为DLR和Astrium GmbH之间的德国国家计划，而TerraSAR-L系统已成为由英国Astrium Ltd.领导的B期合并研究的主题，并且涉及其他几个ESA成员国的公司。 TerraSAR-L系统包括一个携带大型，全极化L波段SAR的航天器，以及一个地面部分架构，该架构将尽可能多地重用现有设施和技术。该服务部门的规模可以满足特派团的要求，可以对此进行补充。 TerraSAR-L系统除了在提供地理信息产品方面发挥商业作用外，还将为科学用户群体提供服务，尤其是在地球科学使用方面，以及对GMES计划的贡献。 L-SAR仪器的规格和地面部分的性能已通过对产品要求的仔细分析得到指导，以便在不过度设计硬件的情况下满足用户群体的需求。广泛的权衡研究证明，L波段航天器应采用创新的“ Snapdragon”配置，在将技术风险和成本降至最低的同时，还提供舒适的设计余量。 TerraSAR整合已经开始，并将在TerraSAR-L系统的规范和定义中涉及广泛的工业界。根据ESA合同，关键的仪器和Snapdragon降低风险的活动进展顺利，预计将于2004年完成。

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