分布式移动水声传感网络地声参数反演  

Geoacoustic inversion using distributed mobile underwater acoustic sensor networks

作　　者：沈一宁 刘粉婷 潘翔[1,2] SHEN Yining;LIU Fenting;PAN Xiang(College of Information Science and Electronic Engineering,Zhejiang University,Hangzhou,310027;Zhejiang Key Laboratory of Information Processing and Communication Network,Hangzhou,310027)

机构地区：[1]浙江大学信息与电子工程学院,杭州310027 [2]浙江省信息处理与通信网络重点实验室,杭州310027

出　　处：《声学学报》2024年第4期774-783,共10页Acta Acustica

基　　金：国家自然科学基金项目(82270309,41776108);海洋防务创新基金项目(JJ-2022-715-01)资助。

摘　　要：提出使用分布式移动水声传感网络以实现大面积海域地声参数的快速反演。将分布式网络节点投影合成不同阵元间距的水平线阵,采用频域相干目标函数,进行匹配场地声参数反演。同时,将定位误差视为一个参量进行反演,结合对水平波数修正的多普勒补偿,提高移动网络反演的鲁棒性。数值仿真和海试数据处理结果验证了分布式移动水声传感网络地声参数反演方法的有效性。A geoacoustic parameter inversion method using the distributed mobile underwater acoustic sensor network is proposed to realize rapid inversion in a large ocean area.The distributed network nodes are projected to synthesize horizontal line arrays with different element spacings for matching field geoacoustic parameter inversion using a frequency-domain coherent objective function.The positioning error is considered as a parameter for inversion and the Doppler compensation is implemented through correction of horizontal wavenumbers,by which the robustness of the mobile network inversion is improved.Numerical simulations and processing results of sea trial data have verified the effectiveness of the geoacoustic parameter inversion method using a distributed mobile underwater acoustic sensor network.

关 键 词：分布式水声传感网络 地声参数反演 节点定位误差 多普勒补偿 

分 类 号：TP212.9[自动化与计算机技术—检测技术与自动化装置] TN929.3[自动化与计算机技术—控制科学与工程] TB56[电子电信—通信与信息系统]