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论述了对极轨气象卫星NOAA/AVHRR图像进行几何精纠正的原理、方法、意义和所能达到的精度。利用ERDAS图像处理系统对1997年4-9月12次不同时相的NOAA数据进行了几何精纠正,为实现草原遥感动态监测做了前提工作。
The principle, method, significance and accuracy of geometrical rectification of NOAA / AVHRR images of polar orbiting meteorological satellite are discussed. The ERDAS image processing system was used to fine-tune the NOAA data of 12 different phases from April to September in 1997, which is a prerequisite for the dynamic monitoring of grassland remote sensing.