【摘要】 介绍了现行标准时间码IRIG-B码的编码方式,为满足岸船对时应用系统设计要求,提高岸船时间比对精度,对现行标准时间码IRIG-B码信息格式约定进行了重新设计,使新的IRIG-B码不仅携带时间信息,同时携带测量误差信息、位置信息、控制信息,并在信息位中加入检验位。考虑卫星信道的误码特性,利用空余码位进行纠错编码。仿真结果表明,在不增加卫星传输带宽的前提下,BCH编码可提高传输可靠性。更多还原

【Abstract】 The standard IRIG-B time code is introduced.This paper extends the information format of standard IRIG-B time codes in order to satisfy the ship-shore time synchronization application system requirement.The new IRIG-B code comprises not only time information,but also measurement error information,location information,control information and check bit.Considering bit error characteristics of satellite channel,the unused bits are used as error correct bits.Simulation shows that BCH code can improve transmission reliability in same bandwidth.更多还原