高分十四号立体测绘卫星无控定位精度初步评估  

Preliminary location accuracy assessments of GF-14 stereo mapping satellite without ground control points

作　　者：王建荣 杨元喜[1,2] 胡燕 吕源[1,2] 杨秀策 卢学良[1,2] 曹彬才 WANG Jianrong;YANG Yuanxi;HU Yan;L Yuan;YANG Xiuce;LU Xueliang;CAO Bincai(National Key Laboratory of Geo-Information Engineering,Xi'an 710054,China;Xi'an Institute of Surveying and Mapping,Xi'an 710054,China)

机构地区：[1]地理信息工程国家重点实验室,陕西西安710054 [2]西安测绘研究所,陕西西安710054

出　　处：《测绘学报》2023年第1期8-14,共7页Acta Geodaetica et Cartographica Sinica

摘　　要：高分十四号卫星是我国目前测绘精度最高的卫星之一,采用了先进的多载荷一体化对地观测技术,主要用于全球范围内高精度定位和测制1∶10 000比例尺地理信息产品。本文重点介绍高分十四号卫星有效载荷和地面测绘处理系统及其性能,并利用国内外高精度检测场进行了几何性能评估。试验结果表明:单航线无控定位精度境内区域达到平面1.80 m(RMS)、高程0.80 m(RMS),境外区域达到平面1.76 m(RMS)、高程0.82 m(RMS),无控定位精度处于国际已公布的光学摄影测量卫星的最高水平。GF-14 is one of the highest mapping accuracy satellites in China, and is adopted advanced multi-load integrated for earth observation technology, which is mainly used for high accuracy location and mapping 1∶10 000 geographic information products on a global wide. In this paper, the payload, ground processing flow and its performance were briefly introduced, then the geometric performance of the satellite images was evaluated using different fields including domestic and foreign areas. As a result, the location accuracy without ground control points(GCPs) of single strip can reach 1.8 m in horizontal and 0.80 m in vertical elevation in domestic areas and 1.76 m in horizontal and 0.82 m in vertical elevation in foreign areas, which can reach the best known level in international optical photogrammetry on location accuracy without GCPs.

关 键 词：卫星摄影测量 光束法平差 激光测距系统 无控定位 

分 类 号：P227[天文地球—大地测量学与测量工程]