EXPERIMENTAL INVESTIGATION OF DETECTION AND LOCATION OF A TARGET IN THREE-LAYERED MEDIA USING THE TR-RTM MIXED METHOD

摘要：

　　The problem of target detection and localization in two-layered media can be solved by time reversal and reverse time migration mixed method.This paper is extended from two-layer layered medium to three-layered media.Due to the interference of two interfacial reflection signals,three-layered media is more difficult to detect than two-layer media.The single prominent mountain like acoustic field distribution is obtained around the target.For interface reflected signal,it is a disordered and inhomogeneous acoustic field distribution with a smaller amplitude.The position of summit is the just position of the target,thus achieving the detection and positioning of the target.

关键词： Time reversal Reversed-time migration Ultrasonic test Layered media

作者: Xiang GAO Li LI Boya LIU Hongjuan YANG Jingpin JIAO

作者单位: College of Mechanical Engineering and Application Electronics Technology, Beijing University of Tech Faculty of Information Technology, Beijing University of Technology, Beijing, 100124, P.R.China Institute of Acoustics, Chinese Academy of Sciences, Beijing, 100190, P.R.China

会议类型: 国际会议

会议名称: The 2019 Symposium on Piezoelectricity,Acoustic Waves and Device Applications(2019(第14届)全国压电和声波理论及器件技术研讨会)

会议地点: 石家庄

会议语种:英文

页码: 486-488

在线出版日期: 2019-11-01（万方平台首次上网日期，不代表论文的发表时间）