摘要
以DALSA公司的CCD图像传感器FTT1010M作为敏感元件,设计并实现了一种基于FPGA的动态CCD星敏感器驱动成像系统,详细介绍了FTT1010M的特性与工作时序、星敏感器成像系统的时序电路、模拟驱动电路、电源转换电路、预处理电路以及分步测试过程。实验结果表明,设计的驱动电路可满足CCD驱动要求,系统可通过上位机调节曝光时间和ADC增益。系统通过多星模拟器成像,在短曝光时间内可获得清晰的模拟星图,为实现动态CCD星敏感器奠定了基础。
An imaging driving system based on image sensor FTT1010M produced by DALSA and FPGA for dynamic CCD star sensor is designed and realized. The characteristic and working schedule of FTT1010M, schedule circuit of imaging driving system for star sensor, analog driving circuit, power supply circuit, pretreatment circuit and testing are mainly introduced. Result of experiments show that the designed driving circuit can fit the demand of CCD driving. Exposal time and gain of ADC can be adjusted by computer. Imaging with star simulator, system can acquire clear star image with short exposal time. It shows the system establish foundation for the realization of dynamic CCD star sensor.
出处
《电子测量技术》
2009年第12期17-20,27,共5页
Electronic Measurement Technology
