舰船运动对时间同步精度的影响  

Influence of Time Synchronous Precision Caused by Ship Moving

作　　者：付永杰[1] 于蒙[1] 李迪[1] 

机构地区：[1]92493部队89分队,葫芦岛125000

出　　处：《舰船电子工程》2016年第12期72-74,112,共4页Ship Electronic Engineering

摘　　要：论文针对海面运动舰艇需要高精密时间同步的问题,选择微波双向时间传递作为海面运动舰艇的时间同步方法。介绍了微波双向时间传递的基本原理,并通过对时间信号传输链路分析,得出了影响时间同步精度的误差来源。详细分析了信号在传播过程中由于舰船运动引起的时延误差,建立了由于舰船运动引起的时延误差数学模型,利用二阶泰勒展开式,推导出由两舰运动速度、加速度引起的时延误差。经计算,由于舰船运动引起的时延误差在0.05ns之内。该理论分析、计算可以为今后建立海面运动舰艇之间的时间同步系统提供理论依据。The paper is aimed at the matter that the high precision time synchronous is very important, and the two-way microwave time transfer （TWMTT） is selected as the time synchronous method for moving ship. Through analysis of signal transfer link, the principle of TWMTT is described. The influencing factors of time synchronous precision are de-duced. Delay errors caused by ship moving are analyzed in detail. The mathematical model of delay error caused by ship mov-ing is set up. Through the second-order expansion Taylor,the delay error caused by movement velocity and acceleration of ships are deduced. Through theoretical analysis and calculation, the delay error caused by ship moving of TWMTT is below 0. 05ns？ which can provide theory basis for establishing time synchronization system between moving ships on sea.

关 键 词：时间同步 时延 舰船运动 泰勒公式 

分 类 号：TB939[一般工业技术—计量学]