提出了基于水下自主航行器的EMCCD微光照相机驱动系统设计方法。首先，分析了EMCCD输出噪声的组成，根据暗电流噪声和时钟感生噪声的关系，给出了常规功率驱动的器件选型原则和设计方法; 讨论了使用图腾柱电路实现电子倍增驱动的功耗问题，并给出了改进方案; 使用高频系统时钟实现了驱动相位和脉宽的微调，解决了驱动时序波形幅度重叠率不足的问题; 最后,给出了使用CCD201-20搭建的水下相机结构和实验结果。实验结果表明，系统产生的常规驱动信号频率为时钟频率10 MHz，串行转移时钟的幅度重叠率优于50%，并行转移时钟的幅度重叠率优于90%，驱动信号的相位调整精度为18°,脉宽调整精度为5 ns，驱动波形稳定、平整，电子倍增驱动信号高电平可调，功耗相较于优化前降低7.2%。本文所介绍的EMCCD驱动系统设计方法充分兼顾了驱动系统的噪声、体积和功耗问题，可以广泛应用在水下微光成像乃至常规CCD领域。

A design method for a low-light level camera driving system based on an autonomous underwater vehicle was proposed. First, the noises of an electron multiplying charge-coupled device camera was analyzed, and the principle and method of designing conventional driving circuits was proposed taking into consideration the relationship between dark current noise and clock-induced charge noise. Next, the issue of power consumption in totem-pole circuits applied to electron multiplying drivers was discussed, and a power optimization plan was presented. A high-precision system clock was used for fine adjustments of the driving signal phase and pulse width and solving the problem of amplitude overlap rate insufficiency. Finally, the low-light level camera structure and experimental results were presented. The experiments indicate that the system-generated conventional driving signal frequency is 10 MHz. The serial transfer clock amplitude overlap rate and parallel transfer clock amplitude overlap rate are better than 50% and 90%, respectively. The phase adjustment accuracy of the driving signal and pulse width adjustment accuracy are 18° and 5 ns, respectively. The driving signal is stable and smooth, the electron multiplying driving signal is highly adjustable, and the power consumption is lowered by 7.2%. The parameters of noise, size, and power consumption were considered in this design. Thus, it can be widely used in underwater low-light level imaging as well as conventional charge-coupled devices.