摘要
采用STK软件对中法海洋卫星(CFOSAT)散射计几何定位算法进行了验证。针对CFOSAT散射计扇形波束扫描观测体制,分别就扇形波束扫描散射计几何定位原型算法、包含天线安装误差的完整几何定位算法利用STK进行了详细验证。结果表明了CFOSAT扇形波束散射计几何定位算法的准确性,与STK几何定位结果偏差在100 m以内。在此基础上,结合有源定标器实验数据,对CFOSAT实际观测数据几何定位参数进行了校正,给出了CFOSAT散射计几何定位精度的初步评估。
STK software is used to verify the algorithm of CFOSAT scatterometer geolocation.For CFOSAT scatterometer fan-beam scanning observation mode,the prototype geolocation algorithm and the complete geolocation algorithm including antenna installation error are verified in detail by STK.The results show that the bias between the results of CFOSAT fan-beam scatterometer geolocation algorithm and STK geometric location is within 100 meters.On this basis,combined with the experimental data of calibration ground station,the geolocation parameters of CFOSAT actual observation data are corrected,and the preliminary evaluation of the geolocation accuracy of CFOSAT scatterometer is given.
作者
云日升
刁宁辉
崔海英
高畅畅
Yun Risheng;Diao Ninghui;Cui Haiying;Gao Changchang(Key Laboratory of Microwave Remote Sensing,Chinese Academy of Sciences,Beijing 100190,China;National Space Science Center,Chinese Academy Sciences,Beijing 100190,China;National Satellite Ocean Application Service,Ministry of Natural Resources,Beijing 100081,China;University of Chinses Academy of Sciences,Beijing 100049,China)
出处
《遥感技术与应用》
CSCD
北大核心
2022年第4期953-960,共8页
Remote Sensing Technology and Application
基金
“十二五”观测卫星地面系统CFOSAT散射计预处理课题(Y7C01KAJ10)
关键词
中法海洋卫星
扇形波束扫描散射计
几何定位
天线安装矩阵
精度评估
Chinese French Oceanography Satellite(CFOSAT)
Rotating Fan-beam Scatterometer(RFSCAT)
Geolocation
Antenna mounting matrix
Accuracy evaluation
