基于FPGA的IRIG-B码国军标编解码设计

Design of IRIG-B Code Encoding and Decoding for National Military Standard Based on FPGA

IRIG-B码作为航天航空遥测系统的主要时间,起着关键作用,IRIG-B码出自美国IRIG-106标准,所以IRIG-B码相关产品设计时也多以美标为主。随着国产化进程的不断推进,国产遥测系统中自主核心技术更是起到主导作用。设计基于IRIG-B码国军标,使用FPGA作为核心控制器,可高效精确地将GPS时间编码输出为B(DC)码格式,也可将B(AC)码时间快速准确的解析出来,经测试验证基于FPGA的IRIG-B码国军标标准的编解码设计准确度高、稳定性强,可应用在相关测试设备中。

The IRIG-B code plays a crucial role as the main time source for aerospace telemetry systems.The IRIG-B code is derived from the US IRIG-106 standard,so the design of IRIG-B code related products is mainly based on American standards.With the continuous advancement of localization,the independent core technology in domestic telemetry systems plays a leading role.This design is based on the IRIG-B code national military standard design,using FPGA as the core controller,which can efficiently and accurately output GPS time encoding into B(DC)code format,and can also quickly and accurately parse B(AC)code time.After testing,it has been verified that the IRIG-B code national military standard based on FPGA has high accuracy and strong stability in encoding and decoding design,which can be applied in relevant testing equipment.