Sonar Echo Simulation Technology Based on Array Phase Weight Estimation  

作　　者：Jun Liu Shenghua Gong Tong Zhang Wenxue Guan Zhenxiang Zhao 

机构地区：[1]School of Electronic Information Engineering,Beihang University,Beijing 100083,China [2]College of Computer Science and Technology,Jilin University,Changchun 130012,China

出　　处：《Journal of Communications and Information Networks》2024年第4期320-329,共10页通信与信息网络学报(英文)

基　　金：supported by the Joint Funds of the National Natural Science Foundation of China under Grant U22A2009;in part by the National Key Research and Development Program under Grant 2021YFC2803000.

摘　　要：Sonar locates underwater targets by receiving reflected sound waves.However,the complex marine environment makes it difficult to set targets in appropriate locations and conditions.The sonar echo simulator has the function of simulating sonar detection target echo signals.As a cutting-edge technology,underwater backscatter has led to the emergence of array based acoustic reflection systems.The research on sonar echo simulators based on backscatter technology has promoted the solution of problems such as target echo modeling,sonar arrival direction estimation,and echo directional transmission.In response to the above problems,this paper designs an end-to-end sonar echo simulator system array phase estimation sonar echo simulation system(APE-SESS),which can independently complete highresolution real-time direction of arrival(DOA)estimation and generate directional simulation echo based on the array structure.Dual branch convolutional neural network(DB-CNN)is proposed in the system to estimate the direction of the signal array and directly obtain the phase weights containing azimuth information.Comparing DBCNN with conventional methods and classic underwater DOA network models based on classification problems,the results show that DB-CNN exhibits stability,small error,and high real-time performance under different signal-to-noise ratio(SNR).The proposed APE-SESS has end-to-end characteristics,real-time angle estimation,and azimuth simulation functions.

关 键 词：sonar echo simulation DOA estimation underwater backscatter BEAMFORMING 

分 类 号：TN925.1[电子电信—通信与信息系统]