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TDI CCD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TDI CCD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TDI CCD传感器像元感光程度。该装置可以模拟TDI CCD传感器输入引脚的阻容特性并能合成完整的TDI CCD视频输出信号,实现TDI CCD传感器的16、32、48或64级积分级数控制的功能。该装置还可以模拟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。
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 100 mm and a width of 45 mm.As the size is same as that of a real TDI CCD sensor,the instrument can simulate the photonic characteristics of the pixels for TDI CCD sensors exactly.Furthermore,it can simulate 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 available.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.
出处
《光学精密工程》
EI
CAS
CSCD
北大核心
2012年第5期1110-1116,共7页
Optics and Precision Engineering
基金
国家自然科学基金资助项目(No.61036105)
关键词
时间延迟积分(TDI)CCD模拟装置
驱动时钟同步
视频输出
信号合成
像元感光度
Time Delay and Integration（TDI） CCD simulation instrument
driving clock synchronizing
video output
signal synthesis
pixel electro-optical characteristic
