第20卷
第5期
2012年5月
文章编号
1004924X(2012)05-1110-07
光学精密工程
Optics and Precision Engineering
Vol. 20No.5
May.2012
外同步式时间延迟积分CCD传感器模拟装置
刘辉*，司国良，郭永飞
（中国科学院长春光学精密机械与物理研究所，吉林长春130033）
摘要：由于时间延迟积分(TDI)CCD传感器在调试阶段易损坏，本文提出了一种基于外同步信号驱动原理的TDICCD 传感器模拟装置，该模拟装置实际尺寸可以达到长100mm，宽45mm，与实际TDICCD传感器的物理尺寸相当，可根据实际光照度大小精确地模拟TDICCD传感器像元感光程度。该装置可以模拟TDICCD传感器输人引脚的阻容特性并能合成完整的TDICCD视频输出信号，实现TDICCD传感器的16、32、48或64级积分级数控制的功能，该装置还可以模摄CCD驱动信号和输出视频信号的温度延时特性，延时时间在0.5～12.5ns间可调，从而方便了信号采样电路对采样时刻的调试。
关键词：时间延迟积分(TDI)CCD模权装置；驱动时钟同步；视频输出；信号合成；像元感光度
中图分类号：TN386.5;TP73
文献标识码：A
doi;10.3788/OPE.20122005.1110
TDICCDsimulationinstrumentsynchronized
withclockingsignals
LIU Hui', SI Guo-liang, GUO Yong-fei
(Changchun Institute of Optics,Fine Mechanics and Physics,ChineseAcademy of Sciences,
Changchun130033，China)
Correspondingauthor,E-mail:fubaiqun@yahoo,com.cn
Abstract: To avoid the damage of Time Delay and Integration(TDI) CCD sensors in the experimental process, a TDICCD simulation instrument synchronized with input driving clocks is introduced. The simulation instrument is designed with a simple method to meet its physical size in a length of 1o0 mm and a width of 45 mm. As the size is same as that of a real TDI CCD sensor, the instrument can simu late the photonic characteristics of the pixels for TDI CCD sensors exactly. Furthermore, it can simu-late the electrical characteristics of pins in the TDI CCD sensor and can synthesize a complete video output signal, by which an important function, selectable TDI stages with 16,32,48 or 64 stage, is a vailable, Moreover, the instrument can be taken to simulate the thermal delay characteristic between the input driving clock and output OS signals in the temperature adjustable range of 0. 5~12. 5 ns, which is convenient to the sample time adjustment for the signal circuit.
Key words: Time Delay and Integration (TDI) CCD simulation instrument; driving clock synchroni-
zing; video output; signal synthesis; pixel electro-optical characteristic
收稿日期：2011-09-23；修订日期：2011-11-06，
基金项目：国家自然科学基金资助项目（No.61036105）