局域網(wǎng)環(huán)境下音頻認證水印系統(tǒng)的設(shè)計與實現(xiàn).pdf

1、南京理工大學碩士學位論文局域網(wǎng)環(huán)境下音頻認證水印系統(tǒng)的設(shè)計與實現(xiàn)姓名：周潔申請學位級別：碩士專業(yè)：控制理論與控制工程指導教師：戴躍偉20050627j妻塞型三查蘭堡主蘭壘笙奎旦苧塑塹竺!童塑墜堡查!墨塹塑堡生蘭窒墨AbstractWiththeadvancingdevelopmentofIntemetandwidelyusingofdigitalsignalprocessing，theprotectionofdigitalinforma

2、tion，especianymultimedia，isbecomingacrucialissueininformationsecurityInconsiderationoftheincreasingvaluesofinformationsecuritytheissuesinsecretcommunicationarestudiedinthisdissertationAvoiceauthenticationcommunicationsys

3、temusingdigitalsisprocessor，digitalwatermarkalgnrittunsandUDP／IPtechnique，isimplementedhlthisthesis，thetechniquesofinformationprotectionbasedondigitalwatermarkandDSParefirstbrieflyintroducedBasedOUexistedDSPsecretecommun

4、icatonresearchplatformaresolutionfordigitalaudioauthenticationcommunication，onwhichdigitalwatermarktechniqueisapplied，isbroughtoutEverymoduleisdescribedindetailinthefollowingchapterAmongmanydigitalwatermarkalgorithms，wes

5、electtwotypicalschemeschoicelyOneiscalledsinusoidalpattembasedspreadspecmlmwatermarkInthisalgorithm，thewatermarkisembededanddetectedmtimefield，Theotheralgorithmisdifferentialenergywatermark(DEWforshort)Theembeddinganddet

6、ctionofwatermarkisinffequencefieldTeachthegoalofnetwork，UDP／IPprotocolsaresuccessfullyconstructedinthissystemWiththeanalyzingofthefeasibilityandperformance，suchasoperationspeed，thecorrespondingadjustmentisalsoappliedTheo

7、utcomeofintergrtiondebuggingindicatethatourdesignissucessfulFinallyIthedissertationisconcludedbypointingOUtsomeopenissues011thissecretcommunicationsystem，aswellashighlightsomefurtherimprovementdirectionsKeyWords：Digitalw