SC-FDE signal joint ranging method in unmanned aerial vehicle swarm networking

The invention provides an SC-FDE signal joint ranging method in unmanned aerial vehicle swarm networking. The method performs joint timing synchronization and ranging estimation on a double oversampling SC-FDE signal, and estimates coarse ranging information for the double oversampling signal and short leading segment data, thereby completing accurate ranging between two communication terminals in a data link system. The method can effectively improve the ranging performance with low complexity, only needs two times of sampling to realize joint timing synchronization and ranging, is suitable for a broadband SC-FDE communication system with a limited sampling rate, and is suitable for a broadband ad hoc network communication system, signals comprise a leading segment and a data segment, and the sampling rate is two times; based on differential correlation of the two paths of signals corresponding to the double sampling signals, the sampling signals with high correlation measurement are obtained through compari