Acoustic Scattering Characteristics of Underwater One-dimensional Corner Reflector Array

In order to simulate the volume characteristics of ship acoustic scattering, an array of underwater corner reflectors is needed, the corner reflectors in the array will interact with each other to form complex scattering, and the adjacent corner reflectors have the greatest degree of interaction. In order to explore the influence law between two adjacent corner reflectors, the scattered sound field of a single corner reflector and two corner reflector arrays is simulated by using the finite element- boundary element method, the law that the target strength of a single angle reflector changes with the incident angle of the sound wave is analyzed, as well as the influence of changing the deployment distance and deployment angle on the scattered sound field of the corner reflector array. The results show that the corner reflector array can improve the strength of the target and the volatility of the scattered sound field compared with a single corner reflector, the fluctuation of the scattered sound field increases with the increase of the spacing, rotating the angular reflector array by 45° can effectively improve the sound scattering ability of the corner reflector array.