摘要
针对敏捷光学卫星的同轨立体成像模式,从立体像对成像质量的角度出发,提出了一种基于步进搜索策略的成像规划方法。建立了同轨立体成像评价模型,采用步进搜索策略,遍历计算全部可行的前后视影像成像时间窗口,选取成像评价指标最佳的时间窗口作为最优规划结果。实现所提出算法并通过仿真实验验证,分析了选取不同的成像时间窗口对立体成像质量的影响,仿真结果表明算法具有可行性。
Aimed at the stereo acquisition imaging-mode of the agile satellite,from the perspective of the quality of stereo pair,an imaging-scheduling algorithm based on certain step-size search is proposed.First,the evaluation model of stereo acquisition quality is built.Then traversing all the available imaging time-windows of front view and back view strip based on step-size search method is performed,and the imaging pattern with the best evaluation resultis selected.The algorithm proposed is tested by simulation data,and the effect on stereo pair image quality of different imaging time-windows is analyzed.The results show that this algorithm is feasible.
出处
《无线电工程》
2015年第11期44-47,51,共5页
Radio Engineering
关键词
敏捷卫星
同轨立体
最优成像规划
步进搜索
agile satellite
stereo acquisition mode
optimal imaging scheduling
step-size search
