简介：与耳机的虚拟繁殖，健全图象是几乎空间的在向前掩盖上的masker和掩盖的信号之间的延期时间的影响在方位角分开了是阀值趋于随延期time.Furthermore的增加戏剧性地减少的studied.The结果表演，在空间分离的情况下，有与maximmn掩盖阀值的difierences大约15dB.However，masker水平什么时候是阀值的70dB.the差别，作为dela增加一些

简介：Combinedthedecompositionoftimereversaloperatorandthetimereversalre-verberationnulling,anewtimereversalprocessingapproachforecho-to-reverberationratioenhancementisproposed.Inthismethod,a2-dimensionalsignalsubspacefortherangeofthetargetandtwobottomfocusingweightvectorsfortherangesnearthetargetareobtainedbythedecompositionoftimereversaloperator.Fromthesignalsubspaceandfocusingweightvectors,aconstrainedoptimalexcitationweightvectorofsourcereceiverarraycanbededucedtonulltheacousticenergyonthecorrespondingbottomandmaximizetheenergyatthetar-get.Thismethodremediestheshortagesofconventionaltimereversalprocessing,timereversalreverberationnullingandtimereversalselectivefocusingmethod.Itfocusessoundenergyatthetargetandnullstheenergyatthebottomnearthetargetrangesimultaneously,thereforeenhancingtheecho-to-reverberationratiowithoutprobesourceandprior-knowledgeoftherel-ativescatteringintensityoftargetandbottom.Numericalsimulationsintypicalshallowwaterenvironmentsshowedtheeffectivenessoftheproposedmethodanditsimprovedperformanceforecho-reverberationenhancementthanconventionaltimereversalprocessing.