基于FPGA的IRIG-B DC码编码设计与应用  

Design and application of IRIG-B DC code coding based on FPGA

作　　者：陈言 蒋琪 王逸伦 Chen Yan;Jiang Qi;Wang Yilun(Beidou Business Department of Beidou Group Co.,Ltd.,Nanjing 211153,China)

机构地区：[1]北方信息控制研究院集团有限公司北斗事业部,江苏南京211153

出　　处：《无线互联科技》2021年第2期64-65,共2页Wireless Internet Technology

摘　　要：IRIG-B码授时是一种较为通用的时间同步方式,在一定条件下,IRIG-B码授时相对于GPS授时具有更高的可靠性和稳定性。文章提出了基于单片机和FPGA硬件平台的IRIG-B码时间同步方法,首先采用单片机对固定格式的消息进行一系列信息提取,再利用FPGA对信息进行转换后输出特定波形。文章方案得到的FPGA输出的波形与理论结果完全一致且同步速度较快,证明IRIG-B授时方案的正确性和可行性。IRIG-B code time service is a more general time synchronization method.Under certain conditions,IRIG-B code time service has higher reliability and stability than GPS time service.This paper proposes an IRIG-B code time synchronization method based on a microcontroller and FPGA hardware platform.First,a microcontroller is used to extract a series of messages in a fixed format,and then the FPGA is used to convert the information and output a specific waveform.The FPGA output waveform obtained by the solution in this paper is completely consistent with the theoretical results and the synchronization speed is relatively fast,which proves the correctness and feasibility of the IRIG-B timing solution.

关 键 词：IRIG-B码 授时 FPGA 

分 类 号：P228.4[天文地球—大地测量学与测量工程] TP368.1[天文地球—测绘科学与技术]