国土资源遥感Issue(4)：48-54,7.DOI:10.6046/gtzyyg.2012.04.09
双视向补偿最佳入射角组合研究
Optimal Incidence Angle Pair Selection for Dual-aspect Compensation in High Resolution SAR Data
摘要
Abstract
In the dual - aspect compensation procedure, the best compensated result occurs under the condition of optimal incidence angle pair, which varies with terrain. Nevettheless, the problem as to how to obtain this pair remains unsolved. To solve this problem, this paper proposes a new method in search for the optimal incidence angle pair based on simulation. Firstly, DEM data are used to produce the layover and shadow mask images at different incidence angles from two different aspect directions respectively. Then from these images, the optimal incidence angle pair was searched out to obtain the best compensating result. On such a basis, the best incidence angle pairs in three areas of different topographic condition for the "dual - aspect compensation" method were given by experiment and the effects were analyzed. The results show that, with this method, the incidence angle pair could be obtained easily and effectively. The method can therefore guide the users to order the best SAR data when they use the dual-aspect compensation in mountainous areas, and this is the essential step in dual - aspect compensation.关键词
高分辨率SAR/双视向补偿/叠掩阴影掩模图像/入射角组合Key words
high resolution SAR/ dual - aspect compensation/ layover and shadow mask image/ incidence angle pair分类
计算机与自动化引用本文复制引用
王国军,邵芸,万紫,张风丽..双视向补偿最佳入射角组合研究[J].国土资源遥感,2012,(4):48-54,7.基金项目
中国科学院知识创新工程重要方向项目(编号:KZCX2-EW-320)、国家自然科学基金项目(编号:41001213)和中国科学院知识创新工程青年人才领域前沿项目(编号:Y0S04400KB)共同资助. （编号:KZCX2-EW-320）
