考虑无线链路的非对称传播时延、中间节点的转发时延以及从节点的时钟源计时误差因素,提出一种全新的基于IEEE 1588协议的多跳无线网络时间同步方法.该时间同步方法首先建立主从时钟之间的时钟偏移以及时钟偏移率的状态空间模型,然后基于此状态空间模型,利用Kalman滤波方法对从节点的时间进行估计.仿真结果表明,本文的时间同步方法与现有工作相比具有更高的同步精度. Considering the asymmetric propagation delay of wireless link, the forwarding delay of intermediate nodes and the timing error of slave nodes, a new method for time synchronization of multi-hop wireless networks based on IEEE 1588 protocol is proposed. The time synchronization method firstly The state space model of the clock offset and the clock skew rate between the master clock and the slave clock is established, and then the Kalman filter method is used to estimate the slave node time based on the state space model. The simulation results show that the time synchronization method Compared with the work has a higher synchronization accuracy.