【作者】 周逸凡； 王英民； 诸国磊； 杜诗慧； 聂瑞欣；

【Author】 ZHOU Yifan;WANG Yingmin;ZHU Guolei;DU Shihui;NIE Ruixin;School of Marine Science and Technology, Northwestern Polytechnical University;

【机构】 西北工业大学航海学院；

【摘要】 针对水下声源目标定位问题,本文研究了基于8元圆环阵的被动定位方法,探究特殊环境下实现声源的高精度定位方法。本文从理论与实际应用出发,通过对JUNO环境声场进行建模及有限元仿真精确模拟复杂声源辐射信号,并分析基于MUSIC算法的DOA估计算法以及定位方法的性能。研究发现,本文提出的JUNO背景下的圆环阵定位方法的精度可达35mm以内,基阵尺寸小便于系统实现,具有理论指导作用。更多还原

【Abstract】 Aiming at the problem of target positioning of underwater sound sources, this paper studies the passive positioning method based on the 8-element circular array, and explores the high-precision positioning method of sound sources in special environments. Starting from the theory and practical application, this paper accurately simulates the radiation signal of complex sound sources through modeling and finite element simulation of the JUNO environmental sound field, and analyzes the performance of the DOA estimation algorithm and the positioning method based on the MUSIC algorithm. The research found that the accuracy of the circular array positioning method proposed in this paper under the background of JUNO can reach within 35mm, and the small size of the array is convenient for system implementation and has a theoretical guiding role.更多还原