A Position Calibration Method for Underwater Fiber Optic Hydrophone Array Based on TDOA and PSO Algorithms.

Underwater optical fiber hydrophone array plays an important role in underwater acoustic location, seismic exploration, wave observation and other fields. It is of great significance to correct the position of underwater fiber optic hydrophone array. Based on TDOA algorithm and improved particle swarm optimization (PSO), a calibration scheme for underwater fiber optic hydrophone array (TDOA-PSO) is proposed in this paper. Simulation results show that the proposed algorithm can effectively improve the positioning accuracy of underwater hydrophone array and reduce the positioning error from 3.5 m to 0.05 m.