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首页> 外文会议>25th Asian conference on remote sensing (ACRS Silver Jubilee) >GEOGRAPHIC SYNTHETIC APERTURE RADAR (GEOSAR) –A NEW GENERATION RADAR SYSTEM SUITABLE FOR GEOSCIENCEAPPLICATIONS IN THE ASIA-PACIFIC REGION
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GEOGRAPHIC SYNTHETIC APERTURE RADAR (GEOSAR) –A NEW GENERATION RADAR SYSTEM SUITABLE FOR GEOSCIENCEAPPLICATIONS IN THE ASIA-PACIFIC REGION

机译：地理合成孔径雷达（GEOSAR）–一种适用于亚太地区地球科学应用的新型生成雷达系统

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摘要

GeoSAR is a new-generation airborne radar system designed for precision mapping of terrainrnattributes and landcover inventory in tropical, temperate and arid environments. Engineered byrnNASA-JPL its development builds on the highly successful, scientific achievements ofrnpolarimetric and interferometric datasets collected during airborne AIRSAR missions and SpacernShuttle radar programs. Currently operated by EarthData International (USA) for civilian andrnmilitary uses, GeoSAR is configured to record in a single pass, simultaneous X- and P-band,rndual polarimetric, interferometric data in two 10 km wide swaths on the left and right sides ofrnthe Gulfstream jet aircraft at an altitude of 10 km above the ground level. In tree-coveredrnterrain, DEMs and ortho-rectified radar reflectance maps are generated near the tops of treerncanopy and beneath the foliage, whilst in a dry-soil environment, surface and sub-surfacerngeometries will be observed.rnThe modelling of bald-earth DEMs from the combined X- and P-band data will be enhanced byrna co-mounted LIDAR system to provide precise ground control points to calibrate the DEMsrnand simplify the mosaicking process of adjacent flightlines of data. In addition, the LIDAR willrnadd valuable information about tree canopy structures that together with the polarimetric detailrnfrom P-band will enable calculations of timber volumes or biomass.rnDeployment of GeoSAR is scheduled for January-February 2006 to coincide with the dry seasonrnin east and south-east Asia providing optimum definition of archaeological sites in the medievalrnarc of countries from Sri Lanka to Myanmar, Thailand, Cambodia, Vietnam, Malaysia andrnIndonesia. In addition, GeoSAR data will be most useful for modelling the regional impact ofrnnatural disasters such as flooding, lahars and landslides. Entry into Australia and New Zealandrnwill be driven by the support of discipline and commercial groups wanting to apply these data tornapplications including topographic mapping, trafficability analyses, land-use planning, design ofrntransportation routes, forest inventory, wetland mapping and floodplain management.
机译：GeoSAR是新一代机载雷达系统，旨在精确绘制热带，温带和干旱环境中的地形特征和土地覆盖物清单。由rnNASA-JPL设计，其开发基于在机载AIRSAR任务和SpacernShuttle雷达计划期间收集的极极化和干涉数据集的高度成功，科学成就。 GeoSAR目前由美国EarthData International（美国）运营，用于民用和军用，GeoSAR配置为在湾流左右两侧的两个10 km宽条带中以单程记录同时X和P波段，双极化，干涉测量数据喷气飞机在海拔10公里以上的高度。在树木覆盖的地形中，在树木冠层顶部附近和树叶下方生成DEM和经正交校正的雷达反射图，而在干燥土壤环境中，将观察到表面和亚表面的几何形状。联合安装的LIDAR系统将增强X波段和P波段的组合数据，以提供精确的地面控制点来校准DEMsrn并简化相邻数据飞行路线的拼接过程。此外，LIDAR还将添加有关树冠结构的有价值的信息，再加上来自P波段的偏振详细信息，从而可以计算木材量或生物量。rnGeoSAR的部署计划于2006年1月至2月与东部和南部的干旱季节相吻合。东亚为从斯里兰卡到缅甸，泰国，柬埔寨，越南，马来西亚和印度尼西亚的国家的中世纪遗址提供了最佳的考古遗址定义。此外，GeoSAR数据对于模拟自然灾害（如洪水，拉哈斯和滑坡）的区域影响最有用。希望将这些数据应用于地形图，可通行性分析，土地使用规划，运输路线设计，森林资源清查，湿地制图和洪泛区管理等应用的学科和商业团体的支持将推动进入澳大利亚和新西兰。

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