综合考虑了无线传感器网络中节点间时间偏移的来源,为了提高无线传感器网络中时间同步精度,降低能量开销,提出了一种在簇结构中基于偏差补偿的同步方法。该方法在完成簇内节点一次信息交换之后,通过簇头对各节点时间偏差进行有效估计并进行补偿来维持同步时间精度,很好地降低了能量消耗。通过仿真实验,该方法在信息开销和同步精度上体现出良好性能。 In order to improve the time synchronization accuracy and reduce the energy cost in wireless sensor networks, a synchronization method based on bias compensation in the cluster structure is proposed. After completing the information exchange among nodes in a cluster, the method effectively estimates and compensates the time deviations of nodes by cluster heads to maintain the synchronization time precision and reduces the energy consumption well. Through simulation experiments, the method shows good performance in information overhead and synchronization accuracy.