光电跟踪设备中光纤通信系统设计  

Design and application of optical fiber communication system in photoelectric tracking equipment

作　　者：张文心 崔永强 李龙 ZHANG Wenxin;CUI Yongqiang;LI Long(Beijing Institute of Remote Sensing Equipment,China Aerospace Science&Industry Corp,Beijing 100039,China)

机构地区：[1]中国航天科工集团北京遥感设备研究所,北京100039

出　　处：《太赫兹科学与电子信息学报》2023年第6期782-787,共6页Journal of Terahertz Science and Electronic Information Technology

摘　　要：为实现高数据传输率、强抗干扰性和超低误码率的目标,采用光纤通信技术传输高帧频、高分辨力的数字图像数据。本设计针对Cameralink接口红外图像数据源,设计了一种基于现场可编程门阵列(FPGA)控制的自适应分辨率和帧频的光纤收发系统,采用了低成本SPARTAN6器件XC6SLX45、串并转换芯片组DS90UB903/904、小型化单模小封装可插拔(SFP)单纤双向收发光模块,实现了双路图像光纤收发功能。其中FPGA接收Cameralink接口图像数据,进行图像转换处理,再通过内部集成电路(I2 C)总线控制串并转芯片组实现自适应图像串行化和解串功能,并驱动光模块实现光电转换。本设计实现了分辨率640×512、帧频100 Hz红外图像数据的发送和接收功能,并通过了各项环境试验,已应用于实际型号项目中。The optical fiber communication technology is adopted to transmit data image with high frame rate and high resolution in order to improve the anti-interference,transmission speed and bit error rate of the photoelectric tracking equipment.The long-distance transmission technology is mainly utilized in this design for Cameralink high-speed digital images,a full-mode Cameralink digital image optical transceiver end is studied based on Field-Programmable Gate Array(FPGA),including FPGA chip,Cameralink interface module,Small Form-factor Pluggables(SFP)optical module,Cameralink decoding module,mode control module.The functions of each module are mainly as follows:Cameralink interface module is utilized to receive Cameralink information and send the received information to Cameralink decoding module;Cameralink decoding module decodes the serial data and sends it to the serial-parallel signal conversion module;the signal conversion module performs serial-to-parallel conversion on the received digital image signal to form a serial data stream;the SFP optical module receives the serial data stream and converts it into an optical fiber signal;the mode control module controls the working mode of the transmitting end.This design can realize the data transmitting and receiving of infrared image in resolution of 640×512 and a frame rate of 100 Hz.It has finished several environment tests and is applied in engineering.

关 键 词：光纤通信 Cameralink接口 串并转换芯片组 

分 类 号：TP391[自动化与计算机技术—计算机应用技术]