新型空间相机偏流角调整方法

New drift adjusting method of space camera

  • 摘要: 针对目前国内光学成像侦察卫星成像模式单一、对曲线条带状目标侦察效率低下的现状,开展了以相机实时像移补偿技术为基础的一种新型空间相机偏流角调整方法的研究.介绍了新型空间相机偏流角调整方法的原理,并设计了一种可使空间相机实现实时像移补偿的偏流调整机构.区别于传统的TDI-CCD拼接后整体旋转调偏流方式,该机构实现了TDI-CCD分片旋转调偏流,以达到空间相机实时像移补偿的目的.最后,进行了偏流机构传动精度分析与测试,分析与测试结果均表明:所设计的偏流调整机构传动精度高,结构系统响应速度快,可满足相机敏捷成像侦查任务.

     

    Abstract: At present, there are some conditions in the research field of the space camera. For example, the imaging mode is single of the optical imaging reconnaissance satellite in our country. The detection efficiency of the satellite is very low for banded target curve. Therefore, it need to carry out a research about the new drift adjusting method of the space camera. This research requires a basis that is the real time compensation technology for the image motion of the camera. First, the theory of the new drift adjusting method of the space camera was introduced, and a drift adjusting mechanism was designed. This mechanism can make the space camera with the real time compensation technology for the image motion. At present, the traditional drift adjusting method is that making all of the TDI-CCDs which have been assembled running together. Know from this, the new drift adjusting method make the TDI-CCD running singly to achieve the time compensation. At last, the transmission accuracy of the flow deviation was analyzed and tested. The test results show that there are many advantages of the drift adjusting mechanism which designed in this article, such as the transmission accuracy is high, and the response speed of structure system is quickly. With this drift mechanism, the space camera can complete the agile imaging reconnaissance tasks.

     

/

返回文章
返回