Aiming at the disadvantages of complex structure and data redundancy of the existing underwater magnetic target positioning system

a novel simple space right-angled tetrahedral structure system design method which can self-correct is proposed. Magnetic target positioning algorithm is set up

compare and analyze the structural characteristics of different systems

verify the structure of the mechanism that with right-angle tetrahedron array in space

simulate and analyze the influence of baseline’s distance

signal-to-noise ratio and positioning distance on the positioning accuracy of the system to determine the optimal optimize the parameters

and verify the positioning accuracy of the system. The experimental results show that: the average positioning error of the system does not exceed 1. 5 m within a distance of 100 m

and the positioning accuracy of the system is doubled after the error self-correction. The system has high engineering applied value in our military’s strategic anti-submarine and ocean reconnaissance.