基于PCIe总线的卫星导航信号传输系统设计  

Satellite navigation signal transmission system design based on PCIe bus

作　　者：蔡晓晖[1] 郑植[2] 李浩[1] 

机构地区：[1]电子科技大学电子科学技术研究院,四川成都611731 [2]电子科技大学通信与信息工程学院,四川成都611731

出　　处：《电子技术应用》2015年第6期24-26,30,共4页Application of Electronic Technique

摘　　要：为了满足高精度软件接收机对卫星导航中频信号传输系统的新要求,设计了一种基于PCIe总线的传输系统。该系统以Virtex-5 FPGA为核心控制器件,以DMA方式通过4通道PCIe接口传输导航卫星数据。详细介绍传输系统AD模块、DMA控制模块、中断模块等核心模块的FPGA实现方法。经过测试与验证,系统读写速率分别达到了800 MB/s和650 MB/s,可以满足不同层次导航软件接收机对原始导航数据的需求。In order to meet the new requirements on the signal transmission system of satellite navigation software receiver, a data transmission system which is based on the PCIe is designed. The system uses Virtex-5 FPGA as the core control device.The satellite navigation data can be transmitted by the 4 channel PCIe interface in the way of DMA. This paper details the transmission system of AD module,DMA control module, interrupt module of the FPGA realization method. After testing and verification, the speed of system can be reaehed 800 MB/s in write and 650 MB/s in read. The design can satisfy the demands of the different lev- els of software receiver in the data transmission.

关 键 词：卫星导航 FPGA PCIE DMA 

分 类 号：TN967[电子电信—信号与信息处理] TP274[电子电信—信息与通信工程]