中国空间科学技术

中国空间科学技术

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卫星遥感图像信息作为姿态敏感器的应用研究

蔡晓东;叶培建;   

  1. 中国空间技术研究院,中国空间技术研究院 北京100094,北京100094
  • 发布日期:2005-12-25

Research on Satellite Attitude Sensor Applying Remote Sensing Image Information

Cai Xiaodong Ye Peijian(China Academy of Space Technology,Beijing 100094)   

  • Online:2005-12-25

被引次数

11

摘要： 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。

关键词: 图像匹配, 陆标敏感器

Abstract: 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.