敏捷卫星同轨多条带拼幅成像模式研究

Study of One-orbit Multi-stripes Splicing Imaging for Agile Satellite

针对长宽均明显大于相机幅宽的区域目标的成像观测,文章建立了敏捷卫星同轨多条带拼幅成像工作模式。对区域目标的划分,用相机视场角随卫星姿态机动扫描将区域分割成多个条带,使得划分的条带能够完全覆盖目标区域,并保证相邻条带之间足够的重叠宽度。对区域划分后得到的条带,分析了可行的观测序列,建立了成像起始时刻优化模型,采用序列二次规划方法对该模型进行求解。

For imaging of area target whose length and width are both greater than the photogra- phy width, this paper proposes one-orbit multi-stripes splicing imaging for agile satellite. For the partition of area target, the partition algorithm based on camera field of view angle is designed to divide the area target into different strips, and a certain overlap width between adjacent stripes is ensured. Then the feasible observation sequences are analyzed and the start imaging time optimi- zation model is built. For the solution of the optimization model, the sequential quadratic pro- gramming algorithm is used.