FPGA的实时PCM遥测数据传输系统设计

为解决遥测系统的高速传输问题,设计了嵌入式架构的实时PCM遥测数据传输系统.该系统采用FPGA进行IRIG-B时码信息提取,并按照时码信息完成遥测数据的帧同步、串并转换,然后采用ARM处理器完成遥测数据的显示、本地存储和网络上传功能.实验表明,该系统传输PCM遥测数据稳定可靠,实时性强,满足小型航空器的实时数据监控需求.

Real-time PCM Telemetry Transmission System Based on FPGA

In order to solve the high-speed data transmission problem in telemetry system,a PCM data transmission system is designed based on embedded real-time architecture.The system can extract IRIG-B code,and can realize frame synchronizing and serial-parallel transforming of telemetry data using FPGA circuits.An ARM circuits is introduced to the system in order to fulfill display,local storage and network uploading.The experiment results prove that the system works reliably,stably and has good real-time performance on PCM data transmission,which can meet the real-time data supervisory requirements of small aircraft.