基于FPGA的遥感高速图像数传系统设计

Design of an acquisition system for a CCD simulator based on FPGA

研究并设计了一种高速图像数传系统,对视频电子系统处理过的图像数据进行格式转换,通过高速串行收发器Tlk2711接收视频处理器发送过来的串行LVDS图像数字信号,并将其转换为并行信号传给FPGA,再通过Camera Link接口与上位机进行图像数据传输并实时成像。同时模拟相机管理控制器实现对相机电子系统中信息处理器的遥测遥控功能,完成控制信号的解析。主要描述数传系统的组成及其FPGA核心模块化设计的实现方法。测试结果表明,本系统成像结果清晰准确,能够完成数据率为2.5 Gbps的点对点高速传输,系统数传速率达到6.72Gbps。

This paper is researched and designed for an image data transmission system of remote sensing camera,which can convert the format of image data processed by video electronic systems,serial transceiver receives the serial LVDS image digital signals from video processor,and converts them to parallel signal which transfers to FPGA.Then,the image transmission and real-time imaging will be finished through camera link and host computer.And simulate the camera management controller to realize the function of telemetry and remote control of information processor in camera electronic systems,and at the same time,complete the interpretation of control signal.This paper mainly describes the major components of the system and the implementation method of FPGA＇s modular design.The test result shows that the imaging result of the system is clear and accurate,it can meet the high-speed point to point transmission test of data rate up to 2.5 Gbps,The design achieves data transfer speed 6.72 Gbps.