水下自主航行器微光照相机驱动系统设计

吴厚德; 侯昱辰; 许文海; 赵明

doi:10.3788/OPE.20182610.2605

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水下自主航行器微光照相机驱动系统设计

信息科学 | 更新时间：2020-07-05

- 水下自主航行器微光照相机驱动系统设计
- Design of driving system for AUV low-light level camera
- 光学精密工程 2018年26卷第10期页码：2605-2613
- 作者机构：
  
  大连海事大学信息科学技术学院, 辽宁大连 116026
- 作者简介：
  
  [ "吴厚德(1982-), 男, 辽宁大连人, 博士, 2008年、2012年于大连海事大学分别获得硕士、博士学位, 现主要从事各种成像系统的设计与实现。E-mail:wuhoude@dlmu.edu.cn" ]
  [ "许文海(1956-), 男, 吉林扶余人, 博士, 教授, 博士生导师, 1991年、1993年于哈尔滨工业大学仪器科学与技术专业和日本东京工业大学生产机械工学获得博士学位(双博士), 现主要从事水下探测、光电检测与光电信息等方面的研究。E-mail:whxu@dlmu.edu.cn" ]
- 基金信息：
  
  国家科技支撑计划课题(2014BAB12B04);辽宁省科学技术计划项目(2015020045);中央高校基本科研业务费专项资金资助(3132015163);国家自然科学基金资助项目(61501077)
- DOI：10.3788/OPE.20182610.2605
  中图分类号： TN386.5;TN223
- 收稿日期：2018-03-01，
  
  录用日期：2018-4-11，
  
  纸质出版日期：2018-10-25
- 稿件说明：
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吴厚德, 侯昱辰, 许文海, 等. 水下自主航行器微光照相机驱动系统设计[J]. 光学精密工程, 2018,26(10):2605-2613.

Hou-de WU, Yu-chen HOU, Wen-hai XU, et al. Design of driving system for AUV low-light level camera[J]. Optics and precision engineering, 2018, 26(10): 2605-2613.
吴厚德, 侯昱辰, 许文海, 等. 水下自主航行器微光照相机驱动系统设计[J]. 光学精密工程, 2018,26(10):2605-2613. DOI： 10.3788/OPE.20182610.2605.

Hou-de WU, Yu-chen HOU, Wen-hai XU, et al. Design of driving system for AUV low-light level camera[J]. Optics and precision engineering, 2018, 26(10): 2605-2613. DOI： 10.3788/OPE.20182610.2605.

摘要

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。

Abstract

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.

关键词

Keywords

references

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