首页> 外文会议>Conference on Algorithms for Multispectral, Hyperspectral, and Ultraspectral Imagery VI 24-26 April 2000 Orlando, USA >Landsat 7 producessing on the EROS Data Center's National land Archiev Processing System (NLAPS)
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Landsat 7 producessing on the EROS Data Center's National land Archiev Processing System (NLAPS)

机译:Landsat 7使用EROS数据中心的国家土地档案处理系统(NLAPS)进行生产

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Staff at the U.S.Geological Survey (USGS) EROS Data Center (EDC) process Landsat 7 data for customer distribution on two distinct systems. The Distributed Active Archiev Center (DAAC) processing is done on the Level-1 product Generation System (LPGS), and the USGS processing is completd on the National Land Archive Processing System (NLAPS). The levels ranging from Level-0 raw data to terrain-corrected precision products in a variety of ouput formats. The NLAPS processing system requires that different ordering procedures be used for standard recipe versous specical order processing, and it nakes available many processing and framing options. The NLAPS draws on a ground control point library whose sources range from paper maps to textual descriptions and registered source imagery, such as digital orthophoto quadrangles. The accuracy of the final products will vary depending on the level of correction applied and the source of the ground control points used for the precision corrections. An accuracy assessment of the LPGS systematic product versus the NAPS systematic product demonstrates that both systems provide the smae geometric and radiometric accuracy in systematically corrected products.
机译:美国地质调查局(USGS)EROS数据中心(EDC)的工作人员处理Landsat 7数据,以便在两个不同的系统上分发客户。分布式主动档案中心(DAAC)的处理在1级产品生成系统(LPGS)上完成,USGS的处理在国家土地档案处理系统(NLAPS)上完成。级别从0级原始数据到各种输出格式的经地形校正的精密产品。 NLAPS处理系统要求针对标准配方和特殊订单处理使用不同的订购程序,并且没有可用的许多处理和成帧选项。 NLAPS利用地面控制点库,其来源范围从纸质地图到文字说明和已注册的源图像,例如数字正射四边形。最终产品的精度将根据所应用的校正级别以及用于精度校正的地面控制点的来源而变化。相对于NAPS系统产品,LPGS系统产品的准确性评估表明,这两个系统在系统校正的产品中均提供了smae几何和辐射测量的准确性。

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