多傳感器目標(biāo)寬容性特征獲取研究.pdf

1、東南大學(xué)碩士學(xué)位論文多傳感器目標(biāo)寬容性特征獲取研究姓名：夏鴻寶申請(qǐng)學(xué)位級(jí)別：碩士專業(yè)：信號(hào)與信息處理指導(dǎo)教師：方世良20070101AbstractTargetrecognitionisoneofthesignificantaspectsinunderwateracousticsignalprocessingHowevertheformersinglesensorbasedrecognitionsystemisvulnerabletot

2、heeffectofunfamiliartarget，underwaterchannel，noise，multi—targetinterferenceandarraysignalprocessing，whichmakesitunpracticalWiththedevelopmentofSonartechnologymodemSonarsystemismostlyequippedwithmultiplesensors，whichimpro

3、vesitsspaceandfrequencycoverageandCallprovidemoretargetinformationInthisthesis，robustfeatureextractionmethodandrobustrecognitionframeworkisdevelopedtoformareliableandeffectivemulti—sensortargetrecognitionsystemThereare5c

4、haptersinthisthesis：Inchapter1，statusofunderwateracougictargetrecognitionisreviewed，besidesbasicideaofrobustrecognitionsystemisintroducedaswellInchapter2，theextractiontechniqueoffeatureswhicharenotvulnerabletounfamiliart

5、argetsisresearchedInchapter3，beampattern，whichCangivethereasontomulti—targetinterferenceofULAandUCAisanalyzed；lineinterferencereductionmethodisdevelopedInchapter4，recognitionsystemframeworkbasedonDStheoryisrepresentedInt