{"title":"Hull-mounted acoustic vector-sensor processing","authors":"M. Hawkes, A. Neharai","doi":"10.1109/ACSSC.1995.540859","DOIUrl":null,"url":null,"abstract":"We consider the direction-of-arrival (DOA) estimation problem using arrays of acoustic vector-sensors located at a solid-liquid boundary. We formulate a measurement model and derive an expression for the Cramer-Rao bound (CRB) of a single source. The CRB is used to analyse the case of rigid and pressure-release surfaces in detail and comparison is made with pressure-sensor arrays. In particular, we show that a pressure-sensor array needs to be somewhat less than a quarter wavelength from a pressure-release surface to have comparable performance to an array of velocity sensors mounted at the surface.","PeriodicalId":171264,"journal":{"name":"Conference Record of The Twenty-Ninth Asilomar Conference on Signals, Systems and Computers","volume":"41 1","pages":"0"},"PeriodicalIF":0.0000,"publicationDate":"1995-10-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"11","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Conference Record of The Twenty-Ninth Asilomar Conference on Signals, Systems and Computers","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.1109/ACSSC.1995.540859","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
引用次数: 11
Abstract
We consider the direction-of-arrival (DOA) estimation problem using arrays of acoustic vector-sensors located at a solid-liquid boundary. We formulate a measurement model and derive an expression for the Cramer-Rao bound (CRB) of a single source. The CRB is used to analyse the case of rigid and pressure-release surfaces in detail and comparison is made with pressure-sensor arrays. In particular, we show that a pressure-sensor array needs to be somewhat less than a quarter wavelength from a pressure-release surface to have comparable performance to an array of velocity sensors mounted at the surface.