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中文摘要：
为了获取西部山区1：50 000地形图,提出结合R/D模型和相似转换模型的平面定位方法。研究结果表明：此方法通过补偿地形效应和轨道的影响来提高影像的平面定位精度。基于R/D模型的平面定位精度在东方向和北方向分别为8.914 8 m和2.236 5 m;R/D模型与相似转换模型结合后的平面定位精度在东方向和北方向分别为0.664 8 m和0.253 3 m,总的定位精度在1.0 m以内,完全满足1：50 000地形图的要求,同时也证明结合R/D模型和相似转换模型的定位方法是行之有效的。
英文摘要：
To obtain 1：50 000 topographic map of the western mountain area, the method based on R/D model and similar transformation model to acquire SAR planimetric position was put forward. The results show that this method improved the accuracy of geo-location by accommodating topographic effects and orbit error. The accuracy of R/D model geo-location is 8.914 8 m and 2.236 5 m in the east and north, respectively. The accuracy of the improved method geo-location is 0.664 8 m and 0.253 3 m in the east and north, respectively, and overall planimetric accuracy is within 1.0 m. The improved method can satisfy the requirement for 1：50 000 topographic map generation, which confn-ms the new method is very effective.
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