资源三号测绘卫星影像产品精度分析与验证

摘要/Abstract

摘要： 资源三号测绘卫星提供了多种影像产品以满足不同用户的需求。本文首先介绍了资源三号测绘卫星多级影像产品及其制作方法，其中传感器校正产品、系统几何纠正产品、精纠正产品均带RFM(Rational Function Model)，可进一步平差生产4D产品。利用登封和安平地区资源三号测绘卫星数据验证多级影像产品的定位精度和利用其制作的DSM(Digital Surface Model)和GTC（Geocoded Terrain Corrected）的精度，系统几何纠正产品与传感其校正产品精度相同，精纠正产品无控定位精度较高，而系统几何纠正产品与精纠正产品的平差精度与传感器校正产品的精度相同。利用资源三号测绘卫星数据制作的登封地区DSM和GTC的平面中误差为2.5米，高程中误差2.5米，安平地区平面中误差1.6米，高程中误差1.5米，高程精度满足1：50 000 DSM一级精度要求，平面精度满足1：50 000 DOM的精度要求。

关键词: 资源三号测绘卫星, 传感器校正产品, 系统几何纠正产品, 精纠正产品, 核线影像

Abstract: The survey satellite ZY-3 provides users with a series of various products to meet their different needs. This paper introduces ZY-3 products and their process methods, including Sensor Corrected (SC) products, Geocoded Ellipsoid Corrected (GEC) products and Enhanced Geocoded Ellipsoid Corrected (eGEC) products, which are provided with Rational Function Model (RFM); and further illustrates the adjustment methodology of 4D products. In the experiments, two sets of ZY-3 data, Dengfeng area and Anping area are used to verify the orientation accuracy of SC, GEC, eGEC products and the model accuracy of Digital Surface Model (DSM) products and Geocoded Terrain Corrected (GTC) products. The results show that GEC products are of the same accuracy of SC products. The orientation accuracy of eGEC products is relatively high and its adjustment result is the same as SC’s. The root mean square errors (RMSEs) of plane and altitude for Dengfeng area are both 2.5m; while the values for Anping area are 1.6m and 1.5m, respectively, which could be used in 1:50000 mapping.

Key words: ZY-3, Sensor Corrected products, Geocoded Ellipsoid Corrected products, Enhanced Geocoded Ellipsoid Corrected products, epipolar images

中图分类号:

P246

潘红播张过唐新明王霞周平许妙忠李德仁. 资源三号测绘卫星影像产品精度分析与验证[J]. , 2013, 42(5): 738-744.

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