敏捷卫星总体参数对像质的影响分析

Analyzing the Influence of the Overall Parameters of Agile Satellite on the Image Quality

摘要: 为满足遥感卫星快速响应同时兼顾高分辨率成像的需求，具有灵巧、高效能力的敏捷卫星成为研究重点。针对TDI-CCD传感器而言，具有快速灵活机动能力的敏捷卫星所造成的像移不利于实现高质量成像。针对上述问题，考虑在俯仰、侧摆以及俯仰侧摆情况下，建立对应的星地关系图，并由此建立相应的像移速度和偏流角计算模型。仿真分析轨道高度和姿态角等卫星总体参数对像移速度和偏流角的影响，对保证相机的成像质量具有重要意义。

Abstract: In order to meet the fast response of remote sensing satellite and the requirement of high-resolution imaging, agile satellites with dexterity and efficiency become the focus of research. For TDI-CCD sensors, the image shift caused by agile satellites with fast mobility is harmful for high quality imaging. According to the different attitude angles, the corresponding map of star-Land and the model of the velocity of the image shift are established. The influence of satellite parameters such as orbital altitude and attitude angle on the image moving velocity and bias angle is analyzed, which is very important for the imaging quality of the camera.