变温度环境下引信与武器平台时钟同步方法

Clock Synchronization between Fuze and Weapon Platform under Variable Temperature

将双向时间戳交换方法应用于引信时钟同步领域时,偏置和漂移测量需要在同步源和终端之间多次交换绝对时间信息,采用出厂温度-频率(TF)函数精度较低,TF表插值法需要多次同步,不适用于引信装定,为此提出了变温度环境下引信与武器平台时钟同步方法。该方法改进了双向时间戳同步方法,采用事先约定的定长码元代替绝对时间交换进行时钟同步,且利用引信时钟源温度漂移统计结果和装定信息同步阶段测量结果进行温度漂移预测。经过仿真和试验验证表明,该方法能够获得稳定的时钟起点,并在一定的温度范围内获得比仅用时钟源温度漂移统计结果修正和TF函数修正更小的时钟同步误差。

A clock synchronization method between fuze and weapon platform under variable temperature were proposed for solving the probrem that the two-step time stamp exchange methods,required large amount of data exchange for offset and drift measurement,and multi-synchronization times were needed for temperature drift estimation,which was not apply to the fuze setting saturation.In the method,symbols with fixed length instead of timestamps became the exchange variable,which reduceed the data required for synchronization.Temperature drift was corrected by both statistical data and measurement data.Simulation and experiments showed that,the method could obtain stable clock start point and reduced more temperature drift than statistical method.