摘要
定量分析了定位模型中输入参数误差与定位误差关系,提出了一种结果的校正方法。根据图像定位结果实际的偏离规律选择定位模型中能校正该偏离的参数,修改该参数达到校正定位结果以实现精准定位。建立了极轨气象卫星行扫描光学遥感仪器的像元定位数学模型,分析了遥感器扫描参数偏差对定位结果的影响,给出了定量的定位偏差计算公式,为遥感器定位结果的校正提供了理论模型,可为遥感器设计的误差控制提供参考。
The relationship of the scanning parameter deviation and geolocation results was analyzed and a calibration method was put forward in this paper. The parameter which could calibrate the off-set was chosen in geolocation model according to the geolocation results, which could be modified to realize the calibration for the accuracy geolocation. The mathematical geolocation model of polar orbiting meteorological satellite images was established. The effect of the scanning parameter deviation on geolocation results was analyzed. The calculation formulas of geolocation deviation value induced by different parameter deviation were given out for quantitative analysis, which could be used for geocorrection and error control of sensor design.
出处
《上海航天》
2012年第3期23-27,共5页
Aerospace Shanghai
关键词
极轨气象卫星
45°扫描镜
图像定位
扫描参数
Polar orbiting meteorological satellitel 45° scanning mirrorl Geolocation
Scanning parameter
