【作者】 王科； 房建成； 全伟；

【Author】 Wang ke Fang jiancheng Quan wei (Department of Instrumentation,Beijing University of Aeronautics and Astronautics,Beijing 100083)

【机构】 北京航空航天大学仪器科学与光电工程学院；

【摘要】 CMOS APS 星敏感器是深空探测器实现高精度定姿的核心部件,其中图像传感器对星图的正确获取是完成姿态确定的重要前提。在分析 CMOS APS 图像传感器 IBIS5-A-1300工作时序的基础上,完成了该芯片初始化和像素读取的时序驱动信号设计,并通过 Xilinx 公司 XC3S400芯片为核心的硬件系统进行了实验验证。实验测试结果表明,所设计的时序驱动程序实现了对 IBIS5-A-1300寄存器配置,且利用卷帘快门方式实现了像素读出,完全满足设计要求,为进一步实现 CMOSAPS 星敏感器提供了条件。更多还原

【Abstract】 CMOS APS star tracker is a vital instrument to deep space explorer’s high-precision attitude determination,image sensor in which provides basis for attitude determination by obtaining star maps. Initialization and pixel read-out driver for IBIS5-A-1300 was designed based on analysis of the CMOS APS image sensor operation timing.A hardware system built around XC3S400,which is a product of Xilinx,was used to verify the driver.Results from the experiments show that the driver meets requirements of design,by implementing internal registers configuration using parallel interface and pixel read-out in rolling curtain shutter mode.The driver designed for IBIS5-A-1300 is important to the realization of CMOS APS star tracker in further.更多还原