基于FPGA的相机图像转接测试系统设计

研究并设计了一种相机图像转接测试系统，将卫星相机视频电子系统输出的串行数传数据进行格式转换并成像，同时能够模拟相机管理控制器功能对相机电子系统中信息处理器进行遥测遥控。相机图像转接系统以 FPGA作为逻辑控制的核心，通过CamLink接口与上位机进行图像数据传输并实时成像，采用 RS232接口接收上位机指令模拟遥测遥控，文中详细介绍了系统组成和 FPGA模块化设计方法，并于硬件电路上进行验证。实测结果表明，以本文方法设计和实现的相机图像转接测试系统成像结果准确无误，能够完整模拟相机管理控制器的遥测遥控功能，实现了多种成像模式的切换，为相机系统研制有很大的促进作用。

Design of camera imaging data format conversion system based on FPGA

This paper presents a simulator for a video processing circuit system of satellite cameras, which fulfills test requirements of each part of circuits of the video process system before being assembled. The simulator can generate simulated video digital signals, control signals of the camera management controller, and image the digital signal of the information processor. FPGA was adopted to act as a center unit, the logic of the simulator is developed with VHDL, The RS232 interface is used to receive instructions from the host computer and simulate telemetry and telecommand. Test results show that the simulator can fully conduct testing of the imaging circuit system and can shorten the debugging time. It is a very important equipment in development of the video process circuit system.