设计了二进制树型拓扑结构传播统一的系统时钟和触发信号，采用CPLD提供传感器间的精确时序和同步。
A binary tree routing topology is designed for propagating the system clock and trigger signal and the accurate timing and synchronization between sensors are provided by CPLD.
该文根据优化目标推导了时钟同步优化算法，从而提高单向网络时延测量的精确性。
And the clock synchronization optimization algorithm which improves the accuracy of one-way network delay measurement is deduced based on the optimizing goal.
为了满足事件顺序记录(SOE)系统数百微秒级分辨率的要求，系统必须实现精确到微秒级的全局时钟同步。
In order to meet the resolution requirement of hundreds of microseconds, microsecond global clock synchronization must be achieved in Sequence of Event (SOE) system.
选用GN-80型GPS接收设备和单片微机进行电力系统状态变量同步采集终端的硬件设计，利用GPS的精确授时作为其同步时钟控制采样脉冲来实现同步采样。
This thesis selects model GN-80 GPS receiver and SCM to design the sampling device. The high accurate time service is used to synchronize the sample clock signal to realize synchronous sampling.
选用GN-80型GPS接收设备和单片微机进行电力系统状态变量同步采集终端的硬件设计，利用GPS的精确授时作为其同步时钟控制采样脉冲来实现同步采样。
This thesis selects model GN-80 GPS receiver and SCM to design the sampling device. The high accurate time service is used to synchronize the sample clock signal to realize synchronous sampling.
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