CCD焦面时序关系和仿真验证流程研究

实时传输型遥感相机在航天中得到越来越广泛的应用。CCD驱动信号直接影响到遥感相机的最终成像质量，遥感CCD相机时序脉冲发生系统的焦平面程序是产生CCD驱动信号的关键程序，因此，通过仿真验证确保其成像质量和技术指标具有重要的意义。对相机成像电路中焦面电路的FPGA软件验证进行了研究总结，同时给出了规范、高效的工序流程。研究结果表明，本文提出的工序流程可以有效避免工程中出现的CCD驱动信号电平不稳、幅值不够、质量不达标等问题，而且，只要焦面时序系统在仿真中满足所列出的各项时序要求，就可以覆盖到CCD时序的各项功能。

Research on simulation of CCD driving timing

TDI/CCD has an extensive application in the aerospace industry. In the field of aerospace remote sensing, CCD driving signal influents the quality of CCD output directly, and the CCD timing pulse generation circuit plays an important role in the CCD driving circuit. Therefore, research on simulation and validation of CCD driving timing is meaningful. In this paper, the simulation for CCD driving timing program is studied, and a normative and efficient simulation procedure is proposed, which can effectively eliminate unqualified CCD signals. As long as all the timing requirements described are satisfied, demands for CCD driving signal can be met. The simulation method proposed in this paper is applied in several satellites.