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2 个结果
  • 简介:Inunderwatertargetdetection,thebottomreverberationhassomeofthesamepropertiesasthetargetecho,whichhasagreatimpactontheperformance.Itisessentialtostudythedifferencebetweentargetechoandreverberation.Inthispaperbasedontheuniqueadvantageofhumanlisteningabilityonobjectsdistinction,theGammatonefilteristakenastheauditorymodel.Inaddition,time-frequencyperceptionfeaturesandauditoryspectrafeaturesareextractedforactivesonartargetechoandbottomreverberationseparation.Thefeaturesoftheexperimentaldatahavegoodconcentrationcharacteristicsinthesameclassandhavealargeamountofdifferencesbetweendifferentclasses,whichshowsthatthismethodcaneffectivelydistinguishbetweenthetargetechoandreverberation.

  • 标签: UNDERWATER TARGET detection AUDITORY PERCEPTION characteristics
  • 简介:自组织网络是一种无需依赖于事先布设的基础通信设施,没有中心控制节点,抗毁性强,复杂的分布式、多跳无线网络.考虑到自组织网自身及无线电磁环境特点,本文根据一种实际波形不同执行阶段特点提出智能感知方案,使得设备在噪声等干扰最少、接收信号较佳的频点上工作,从而提高通信良好频点利用率,获取更高质量的通信体验.

  • 标签: 自组织网 智能感知 选频