光纤数据接收单元的设计和实现

Design and Implementation of Fiber-optic Data Receiving Unit

完成了用于某数字阵雷达试验阵系统光纤数据接收单元的设计和开发工作。该单元作为雷达T/R组件和信号处理分系统之间的桥梁,通过光纤完成雷达回波数据的接收,同时可以实现雷达回波数据一个重复周期的乒乓存储和传输。除此之外,光纤数据接收单元实现了与雷达定时监控分系统的串口通信功能。给出了一种基于FPGA和光纤接收模块的实现方案,介绍了光纤数据接收单元的系统构成、硬件接口电路设计以及FPGA中各个控制模块的开发。

The fiber-optic data receiving unit for a digital array radar laboratory system is designed and developed.As a bridge of radar T/R modules and signal processing subsystem,this unit completes the receiving of radar echo data by the optical fiber.The received data is buffered in the memory space of the board for the signal processing subsystem.This unit also implements serial interface communication with radar monitoring subsystem.This paper gives a solution based on FPGA and fiber receiving modules,describes the system composition and the design of hardware interface circuit,including the development of each control module in FPGA.