为了及时发现及定位基于FPGA(Field Programmable Gate Arrays)的自适应波前处理器执行过程中发生的问题, 提出一种针对该波前处理器的故障诊断系统以解决这一问题。根据调试及操作的需求, 该系统能够向上位机实时反馈当前波前处理各部分的执行结果及运行状态, 定位故障并分析数据误差。该系统在137单元波前处理器实验平台上进行了实验, 实验结果表明: 在处理器实时校正过程中, 监控系统反馈的数据及相关信息与相应理论值能够很好地匹配, 能及时发现故障并定位。该系统应用于大型地基高分辨率成像望远镜的自适应光学系统, 直观反映自适应光学波前处理器的运行过程及相应结果, 如发生故障, 可以及时发现并定位故障来源, 较大地提高了硬件及软件的调试效率。同时, 通过各阶段运行结果的分析, 有利于进一步提高各部分运算速度及精度。

For the purpose of detecting and locating faults in time during the running of adaptive optical wave-front processor based on Field Programmable Gate Arrays (FPGAs), a fault diagnostic system (FDS) is proposed for this wave-front processor.According to the requirements of debugging and operating, the system can provide real-time feedback of the results and states from each part of the wave-front processor to upper PC, locate faults, and analyze data error.The fault diagnostic system was tested on 137-unit adaptive optical wave-front processor platform.Experimental results indicate that the feedback data from the monitor system and the relevant information are pretty matched with the corresponding theoretical values, and FDS can also detect and locate the faults in time, during the real-time correction of the processor.The system is applied in the large foundation of high resolution imaging telescope adaptive optical system, which is able to reflect the process and relevant results of the adaptive optical wave-front processor intuitively, detect and locate the source of faults in time if faults occur, and greatly improve the testing efficiency in both hardware and software.Meanwhile, analyzing the results from each stage contributes to improve the calculation speed and precision.