基于DSP和FPGA的Roip网关的设计与实现

Design and Implementation of Roip gateway based on DSP and FPGA

Roip是庞大的VOIP通信体系的一个分支,是未来的公共安全应急通信系统不可缺少的一个技术构成。对该网关设备所涉及到的技术原理进行介绍,其次对该网关产品的硬件组成部分进行了分模块介绍和研究,包括DSP模块和FPGA模块。并针对硬件整体架构分析其工作原理和流程。测试表明:基于DSP+FPGA技术的Roip网关具有易扩展,应用灵活,成本低廉的优点。

As a branch of VOIP（Voice over IP） communication system,Roip（Radio over IP） is the indispensable technology for the future public safety emergency communications system.This article first describes key technologies of the gateway device,then treats of sub-module hardware of the gateway,including the DSP module and the FPGA module,then discusses its overall hardware framework,working principle and process.Experiment indicates that the design based on DSP plus FPGA has the advantages of good scalability,flexible application and low cost.