光学双向推扫空间相机的设计与实验  

Design and Test of Optical Bidirectional Scanning Space Camera

作　　者：孙欣[1,2] 武永见 刘涌[1,2] 王海超 胡永力[1,2] 王劲强 SUN Xin;WU Yong-jian;LIU Yong;WANG Hai-chao;HU Yong-li;WANG Jin-qiang(Beijing Institute of Space Mechanics&Electricity,Beijing 100094,China;Beijing Key Laboratory of Advanced Optical Remote Sensing Technology,Beijing 100094,China)

机构地区：[1]北京空间机电研究所,北京100094 [2]先进光学遥感技术北京市重点实验室,北京100094

出　　处：《光学与光电技术》2022年第3期18-23,共6页Optics & Optoelectronic Technology

摘　　要：对于搭载单向积分TDI探测器的推扫式空间光学相机,探测器的积分方向是限制卫星敏捷机动任务规划的一项重要限制。利用在光学系统中加入法线方向与光轴成一定角度的平面镜可以改变系统物像正倒关系而不影响光程及像质的特点,设计了光学双向推扫系统。为了验证其方案的合理性,设计并装调了光学双向推扫相机工程样机。对该相机进行外景成像实验,成像实验结果与预期一致,光路切换效果明显,验证了其适应两种飞行方向的能力。总结工程样机研制过程,提出了后续需要考虑的问题,为后续光学双向推扫相机在型号上应用打下基础。Satellite’s agile task planning is limited by the integration direction of the detector,especially for a remote sensing satellite with single integral direction TDI detector.The optical bidirectional scanning system is proposed.In this system,a plane mirror whose normal direction is at a certain angle to the optical axis is added in.With this mirror,the forward and reverse relationship of the system object image is changed,and the optical path and image quality are not affected.In order to verify the rationality of the optical system,an engineering prototype of optical bidirectional scanning camera is designed and installed.The imaging test of the camera is carried out,the imaging test result is consistent with expectation,and the optical switching effect is obvious.This experiment demonstrates the camera’s ability to adapt to both flight directions.The development process of the prototype is summarized,and the problems to be considered in the future are put forward,which lay a foundation for the application of the optical bidirectional scan camera.

关 键 词：光学 双向推扫 平面镜 物像关系 空间相机 

分 类 号：V445.8[航空宇航科学与技术—飞行器设计]