Self-adaption positioning and navigation system and method for AUV (automatic underwater vehicle) platform

The invention provides a self-adaption positioning and navigation system and method for an AUV (automatic underwater vehicle) platform. The system comprises an underwater acoustic communication node mounted at an AUV end of a small autonomous detection platform as well as a communication and positioning node mounted at a transferring station end. The system is mainly used for underwater guide of the AUV platform, so that the AUV platform accurately sails to the transferring station end to complete work of energy supply, data export, state detection and the like. The invention provides the self-adaption positioning and navigation system and method for the AUV platform. Underwater acoustic communication ranging and ultra-short base line direction finding functions are jointly used, the location information of an AUV is updated in real time in the operation process, and the motion trail of the AUV is corrected in real time according to target location information, so that the AUV can accurately reach the target point. In order to facilitate use, a self-adaption parameter configuration function of an underwater communication node is designed.