| 中国首颗民用测绘卫星——“资源三号”数据处理和应用 |
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| 引用本文： | 唐新明,周 平.中国首颗民用测绘卫星——“资源三号”数据处理和应用[J].中国科学院院刊,2013(Z1):98-106. |
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| 作者姓名： | 唐新明 周 平 |
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| 作者单位： | 国家测绘地理信息局卫星测绘应用中心北京 100830;国家测绘地理信息局卫星测绘应用中心北京 100830 |
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| 摘 要： | 2012年1月9日发射的我国首颗民用立体测图卫星“资源三号”是我国自主设计、研制和处理的精度最高的卫星。该卫星充分继承了我国资源卫星系列的平台技术，装载前后下视3台全色相机(下视相机分辨率2.1米，前后视相机分辨率3.5米)、1台多光谱相机(分辨率5.8米)、3台星敏感器和2台双频GPS接收机，实现对地三维摄影和多光谱探测，并获取相机成像时刻的高精度轨道与姿态测量数据。地面处理系统利用定期在轨几何检校成果，研究构建了“资源三号”测绘卫星高精度严密成像几何模型和有理函数模型。建立了满足测绘以及相关行业需求、与国内外成熟先进商业卫星接轨的“资源三号”影像产品体系。生产的“资源三号”影像产品无控制点平面精度达到10米，高程精度达到6米，带控制点平面精度达到3—4米，高程精度达到2—3米，处于国际同类领先水平，全面满足1∶5万和1∶2.5万比例尺的立体测图(平原、丘陵、山地和高山区)的精度要求，并可开拓研究其在1∶1万比例尺困难区测图应用的可行性。目前，“资源三号”测绘卫星在轨运行正常，卫星测绘应用成果丰硕，数据已开始全面应用于我国1∶5万基础地理信息产品生产以及更大比例尺地图的修测更新和地理国情监测，正积极服务于国土、规划、林业、农业、减灾等行业，并参与国际交流和合作。
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| 关 键 词： | “ 资源三号”(ZY-3)，测绘卫星，卫星测绘 |
Data Processing and Application of the China's First Civilian Surveying and Mapping Satellite ZY-3 |
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| Tang Xinming and Zhou Ping.Data Processing and Application of the China's First Civilian Surveying and Mapping Satellite ZY-3[J].Bulletin of the Chinese Academy of Sciences,2013(Z1):98-106. |
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| Authors: | Tang Xinming and Zhou Ping |
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| Institution: | Satellite Surveying and Mapping Application Center, National Administration of Surveying, Mapping and Geo-information, Beijing 100830, China;Satellite Surveying and Mapping Application Center, National Administration of Surveying, Mapping and Geo-information, Beijing 100830, China |
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| Abstract: | ZiYuan-3 (ZY-3), launched on January 9, 2012, is China''s first civilian stereo mapping satellite and has the highest precision in China. ZY-3 is equipped with three panchromatic cameras, i.e., a forward looking camera with GSD 3.5 m, a backward looking camera with GSD 3.5 m, and a nadir camera with GSD 2.1 m, one multi-spectral camera with GSD 5.8 m, three star sensors, and two dual-frequency GPSs. ZY-3 can acquire high-precision result of the attitude and orbit determination at the imaging time. The processing system fulfills the on-orbit geometric calibration and builds up the rigorous model of high-precision sensor and Rational Function Model (RFM) of ZY-3 satellite. Standard products can meet the requirements of surveying and mapping and related realms. The planar accuracy (without ground control point) of the ZY-3 image product is better than 10 m and vertical accuracy is better than 6 m. With ground control points, the planar accuracy reaches 3~4 m and the vertical accuracy reaches 2~3 m, which completely meet the requirements of 1:50000 and 1:25000 stereo mapping. The image products can even be applied for 1:10000 scale map updating. At present, ZY-3 satellite is running on orbit stably. The products are now being used for updating of 1:50000 basic geographic information products, and national geographical situation surveillance. Many applications have also been achieved in the field of land resources, planning, forestry, agriculture, and natural disaster reduction, and international collaborations are undergoing. |
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