水下掩埋目標檢測軟件設計.pdf

1、東南大學碩士學位論文水下掩埋目標檢測軟件設計姓名：夏威申請學位級別：碩士專業(yè)：信號與信息處理指導教師：陳勵軍20090317AbstractAbstractTheutilizationofactivesonardetectionoftargetsisoneofthesignificantmethodsforunderwatertargetdetection，especiallyintheoccasionsofstaticandbotto

2、mburiedtargetsInthispaperasoftwaresystem，inotherwords，adataprocessingsoftwareplatform，whichisappliedinburiedunderwatertargetdetectionisdesignedandimplementedWiththehelpofsuchsystem，thedatafromseaexperimentisanalyzed，ands

3、omevaluableresultsareachievedInitiallybasictheoryonsonardetectionisillustratedinthreeaspects，thatis，thereverberationcharacteristics，activesonarwaveformdesignandactivesonarsignalprocessingmethodsAccordingtothefactthatreve

4、rberationiscausedbytheemissionsignal，discussionofthechoiceofthesignalwaveforrnisgiven；thereafteractivesonardetectionmethodsarelisted，suchasbeamforming，matchedfilteringandtime—frequencyanalysisTheseallwillprovideatheoreti

5、calbasisforthefollowingsoftwaresystemdesignSecondlyafteranintroductionofburiedunderwatertargetdetectionhardwaresystemcomponents，theequipments’majorperformanceindicatorsaregiven，andhardwaresystemistestedbyexperimentalsimu

6、lationsTestresultsshowthatthehardwaresystemhasthecharacteristicsofhigh—powerlowfrequencybroadbandandnarrowbeam，whichareconducivetothesuppressionofreverberationandinlinewiththeburiedtargetdetectionexperimentalrequirements

7、Thirdlyinaccordancewiththeprinciplesofthesignalprocessingsoftwaresystemdesign，underwaterburiedtargetdetectiondataprocessingsystemframeworkisdesigned，anditsfunctionmodulesareexplainedFurthermore，withthehelpoftheMatlab—bas

8、edGUIdesigntheexperimentaldataprocessingsoftwareplatformisimplementedThedistinguishingfeaturesofthisplatformisoperationalsimple，interfaceattractive，andcommunicationconvenient，whichareallessentialforthequasireal—timeexper

9、imentaldataprocessingFinallythroughprocessingandanalysisoftheseatrialdataunderdifferentgrazingangledetectiontheeffectivenessoftheburiedunderwatertargetdetectionanddataprocessinghardwaresystemplatformisverifiedExperimenta