天文光电观测系统实时信息处理机的设计与实现

针对地基天文光电观测系统获取图像数据量大、实时处理难度高等特点,设计并实现了以高可靠CPCI工控机为平台、基于FPGA+双DSP TMS320C6455的实时信息处理机。详细介绍了实时信息处理机硬件结构,深入分析了实时信息处理机的设计特点。针对实时信息处理机实时图像获取和实时图像处理的主要任务,重点描述了工程实现过程中图像获取及处理流程、弱小目标检测算法实现、DSP任务分割和速度优化等。外场实验及大量实测数据处理结果验证了该处理机的实时性和处理能力,满足了天文光电观测系统的要求,为高分辨率图像的处理运算提供了可靠的硬件平台。

Design and implementation of a real-time signal processor for astronomical opto-electronic observation system

For characteristics of the image sequences obtained by the terrestrial astronomical opto-electronic observation system such as massive data,robust real-time processing performance,etc,a real-time signal processor based on high reliable CPCI industrial computer was designed and realized,which adopted FPGA and dual DSP TMS320C6455s.Its hardware structure was introduced in detail and its characteristics were deeply analyzed.According to the main tasks of real-time image acquirement and processing,the key points such as the flow of image acquirement and processing,algorithm of weak small targets detection,assignment of DSP tasks,and optimization of program speed were emphatically described.Finally,the real-time performance and processing capacity of this signal processor were validated with practical experiment and large quantity of real-measured data.It meets the demand of the astronomical opto-electronic observation system,and provides a high reliable hardware platform for processing of high-resolution images.