基于FPGA的高速光通信测试系统设计

Design of high speed optical communication test system based on FPGA

传统的通信带宽和硬件设计难以满足高速光通信系统的要求,文中基于可编程逻辑设计工具FPGA构建了一套高速光通信测试系统。为了满足光通信系统中低延迟、高准确度的要求,设计了以MAC控制为核心的FPGA芯片。为确保实现通信系统的合理管控,使用特定的MAC-PHY接口管理系统数据,并针对收发器与系统环路设计了相应的滤波器,以保证信号传输的信噪比稳定在正常范围内。实验测试和数据分析结果表明,所设计的系统在传输距离、功耗与稳定程度方面均有良好的性能,具备一定的工程应用价值。

Traditional communication bandwidth and hardware design are difficult to meet the requirements of high⁃speed optical communication systems.Based on the programmable logic design tool FPGA,a highspeed optical communication test system is constructed.In order to meet the requirements of low latency and high accuracy in optical communication systems,an FPGA chip with MAC control as the core is designed in this paper.To ensure reasonable control of the communication system,a specific MAC⁃PHY interface is used to manage system data,and corresponding filters are designed for the transceiver and system loop to ensure that the signal⁃to⁃noise ratio of signal transmission is stable within the normal range.Experimental testing and data analysis results show that the system designed in this paper has good performance in terms of transmission distance,power consumption and stability,and has certain engineering application value.