The Main Optical Telescope (MOT) is an important payload of the Space Solar Telescope (SST) with various instruments and observation modes. Its real-time data handling and management and control tasks are arduous. Bas...The Main Optical Telescope (MOT) is an important payload of the Space Solar Telescope (SST) with various instruments and observation modes. Its real-time data handling and management and control tasks are arduous. Based on the advanced techniques of foreign countries, an improved structure of onboard data handling systems feasible for SST, is proposed. This article concentrated on the development of a Central Management & Control Unit (MCU) based on FPGA and DSP. Through reconfigurating the FPGA and DSP programs, the prototype could perform different tasks. Thus the inheritability of the whole system is improved. The completed dual-channel prototype proves that the system meets all requirements of the MOT. Its high reliability and safety features also meet the requirements under harsh conditions such as mine detection.展开更多
基金Project 863-2.5.2.25 supported by the National High Technology Research & Development (863) Program of China
文摘The Main Optical Telescope (MOT) is an important payload of the Space Solar Telescope (SST) with various instruments and observation modes. Its real-time data handling and management and control tasks are arduous. Based on the advanced techniques of foreign countries, an improved structure of onboard data handling systems feasible for SST, is proposed. This article concentrated on the development of a Central Management & Control Unit (MCU) based on FPGA and DSP. Through reconfigurating the FPGA and DSP programs, the prototype could perform different tasks. Thus the inheritability of the whole system is improved. The completed dual-channel prototype proves that the system meets all requirements of the MOT. Its high reliability and safety features also meet the requirements under harsh conditions such as mine detection.
文摘传统星上系统开发与研制通常是基于特定的专用宇航器件,这使得其开发周期长且可移植性较差。针对该问题,提出了一种基于Xilinx ZYNQ UltraScale+平台的ARM+可编程逻辑的解决方案。该方案用Vivado配置FPGA硬件架构,采用SDK(Software Development Kit)配置ARM实现两者数据交互。在整个系统设计中,通过集成在芯片内部的高速串行收发器和Aurora协议作为载体进行高速片间传输;采用自定义帧协议保证传输可靠性及安全性;采用AXI-Stream接口使其具有各类算法即插即用的灵活性;最后为验证本系统可以支持各类算法进行星上实时图像处理,通过在逻辑侧添加Sobel边缘检测算法进行验证。测试结果表明该系统图像数据传输无误码,星上串行高速传输速率较高,系统总体传输延时较低,且系统具有较强的算法通用性。
