微光探测器时序设计研究  

Study on Timing Design of a Low Light Sensor

作　　者：王鹏[1] 刘琦[1] 徐磊[1] WANG Peng;LIU Qi;XU Lei(Beijing Institute of Space Mechanics ＆ Electricity, Beijing 100094, China)

机构地区：[1]北京空间机电研究所,北京100094

出　　处：《航天返回与遥感》2018年第2期63-72,共10页Spacecraft Recovery & Remote Sensing

基　　金：国家重大科技专项工程

摘　　要：随着科学技术的不断发展,以EMCCD作为微光探测器的成像系统得到了广泛应用。微光相机成像系统中应用了某款EMCCD作为微光通道的探测器,文章结合这款探测器的结构特点,对EMCCD的时序设计进行研究。通过对微光相机成像系统的介绍,并比较不同EMCCD时序设计方案的基础上,提出了微光探测器的时序控制和高压信号控制等关键时序设计方案。通过设计、测试和验证,证明作为微光相机影响成像品质的重要因素,EMCCD时序设计逻辑正确,为成像系统的图像品质提供了基础保障。With the development of science and technology, the imaging systems which use EMCCD as the low light sensor are applied more and more widely. In this paper, one EMCCD is used as the senor for the low light channel in the low light camera, and then its timing design is studied by associating the EMCCD’s structure characteristics. Through introducing the camera’s imaging system and comparing the different timing design solutions, one can find that the timing control and the high voltage signals control are important for the timing design of the low light sensor. Through design, test and verification, it shows that the logic of the EMCCD’s timing design in the low light camera is right, which can be one important factor to provide the basic guarantee of the system imaging quality.

关 键 词：时序设计 高压信号 电子倍增电荷耦合器件 微光相机 航天遥感 

分 类 号：V443.5[航空宇航科学与技术—飞行器设计]