Double-node phase synchronization method

A double-node phase synchronization method comprises the following steps of: performing bidirectional synchronization pulse transmission between a master node and a slave node, measuring a frequency difference and phase noise between the master node and the slave node, calculating a compensation phase, and compensating received echos by using the compensation phase to realize phase synchronization. According to the invention, synchronization is carried out on phases between two nodes, bidirectional opposite transmission of radar carrier phases is adopted to obtain a frequency difference and aphase noise signal between the two nodes, the frequency difference and the phase noise signal are used to compensate received echoes, phase synchronization is realized, and relatively high precision is obtained. 一种双节点相位同步方法，主节点和从节点之间进行双向同步脉冲传输，测量主节点和从节点之间的频率差和相位噪声，计算补偿相位，用补偿相位来补偿接收回波，实现相位同步。本发明针对双节点间的相位进行同步，采用雷达载波相位的双向对传，获得两个节点间的频率差和相位噪声信号，用它补偿接收回波，实现相位同步，并获得较高精度。