卫星遥感图像信息作为姿态敏感器的应用研究

陆标敏感器可以从卫星遥感图像信息中提取卫星的姿态信息,它根据卫星实时图像与基准图像之间的偏移量,计算出卫星的姿态。对陆标敏感器的总体方案进行了设计,在图像匹配技术中采用基于区域特征的先粗匹配、后精匹配的匹配算法,在姿态确定算法中对可能达到的姿态测量精度进行了理论分析,研究表明陆标敏感器可以获得较高精度的卫星姿态信息,作为新型光学姿态敏感器具有重要的研究意义。

Research on Satellite Attitude Sensor Applying Remote Sensing Image Information

Landmark sensor acquires satellite attitude information from the remote sensing images by calculating the object movement between real-time images and template images and thereon computing the satellite attitude. The general scheme of landmark sensor is designed, in which image matching is the key technique. A coarse-to-fine image matching algorithm based on image regional features is proposed. The attainable precision of attitude acquisition is analyzed theoretically, and the result shows that high-precision satellite attitude information can be achieved by the landmark sensor, which is of great value as a novel optical attitude sensor.