Direction finding characteristics of the bio-sonar model of a big brown bat
作者机构：College of Information Science and EngineeringHohai UniversityNanjing211100 Southern Marine Science and Engineering Guangdong LaboratoryZhanjiang524000
出 版 物：《Chinese Journal of Acoustics》 (声学学报（英文版）)
年 卷 期：2024年第43卷第3期
页 面：380-395页
核心收录：
学科分类：08[工学] 0812[工学-计算机科学与技术（可授工学、理学学位）]
基 金：supported by the National Natural Science Foundation of China(62171210)
摘 要：A bionic model of bat bio-sonar is established through computer simulation in this study,with a focus on investigating itsorientation measurement performance.A model for simulating bat orientation perception is created via a binaural broadband interferometer,utilizing binaural interference *** model incorporates a convolutional neural network(CNN)to achieve extraction and perception of orientation ***,the principle of multi-frequency point defuzzification is elaborated upon in the *** simulation results reveal the proposed bionic model achieves a direction measurement accuracy of 0.87◦and 0.116◦in the rough search mode and precise search mode,respectively,at a signal-to-noise ratio of 25 *** model demonstrates high accuracy in orientation recognition and defuzzification *** to the technique that employs broad phase difference to determine target orientation information,the proposed model exhibits analogous direction finding efficiency but superior defuzzification capacity.
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