环境一号卫星A/B星数据自动几何精校正设计研究  

Research on HJ-1 A/B satellites data automatic geometric precision correction design

作　　者：熊文成[1] 申文明[1] 王桥[1] 史园莉[1] 肖如林[1] 付卓[1] 

机构地区：[1]环境保护部卫星环境应用中心,北京100094

出　　处：《中国工程科学》2014年第3期37-42,共6页Strategic Study of CAE

基　　金：高分辨率对地观测系统国家科技重大专项资助(05-Y30B02-9001-13/15-2)

摘　　要：环境一号卫星A/B星是我国自主研制的小卫星星座,其在轨稳定运行近5年,并稳定获取了大量高质量的观测数据,实现对这些观测数据的几何精校正处理,对发挥环境星宏观、动态的生态环境监测有着重要意义。本文首先分析了环境一号卫星参数特点以及环境一号卫星2级数据(系统几何校正后的数据)的几何特点。基于此,设计了环境一号卫星各载荷总体几何精校正方法流程以及charge-coupled device(CCD)相机自动几何精校正方法。实际运行数据表明,该方法可以较好地实现环境一号卫星各载荷数据的自动几何精校正,环境一号卫星CCD相机自动几何精校正图像精度可达到2个像素以内,同星不同载荷图像之间自动匹配方法可以获取小于1个像素的图像匹配精度。HJ-1 A/B satellites were developed independently by China,have operated well on-orbit for five years and acquired a large number of high-quality observation data. The realiza-tion of the observation data geometric precision correction is of great significance for macro and dynamic ecological environment monitoring. The paper analyzed the parameter characteris-tics of HJ-1 satellite and geometric features of HJ-1 satellite level 2 data（systematic geo-cor-rected data）. Based on this , the overall HJ-1 multi-sensor geometric correction flow and charge-coupled device（CCD）automatic geometric precision correction method were designed. Actual operating data showed that the method could achieve good result for automatic geomet-ric precision correction of HJ-1 satellite data,automatic HJ-1 CCD image geometric precision correction accuracy could be achieved within two pixels and automatic matching accuracy be-tween the images of same satellite could be obtained less than one pixel.

关 键 词：环境一号卫星 自动 几何精校正 

分 类 号：TP79[自动化与计算机技术—检测技术与自动化装置]