Distributed beam forming carrier phase synchronization method based on sea wireless sensor network

The invention relates to a distributed beam forming carrier phase synchronization method based on a sea wireless sensor network, and belongs to the technical field of wireless sensor networks and distributed beam forming. The distributed beam forming carrier phase synchronization method is provided to solve the problems that an existing time slot back-and-forth carrier synchronization method is poor in expansibility, phase synchronization between nodes is slow and a distributed beam can not reach a satellite in time due to small power of a single sensor, and is provided to suppress the Doppler effect appearing in the process of signal transmission between the nodes. The distributed beam forming carrier phase synchronization method includes the steps that the target node sends a single frequency beacon signal to the main node and the auxiliary node, and the main node after being processed through a phase discrimination circuit obtains a main node modulating signal; the auxiliary node sends the received single frequency beacon signal to the main node, and the single frequency beacon signal processed through the main node is sent to the auxiliary node again to form an auxiliary node modulating signal; the main node modulating signal and the auxiliary node modulating signal are superposed in an in-phase mode at the target node to obtain power gain. The distributed beam forming carrier phase synchronization method is further suitable for the wireless sensor networks.