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简介：Movingtargetdetection(MTD)techniqueisdesignedtofilteringouttheclutters.ThebasisoftheMTDdigitalsignalprocessorisabankofDopplerfiltersdesignedusingFFTalgorithm.Forhighpulserepetitionfrequency(HPRF),itleadstoalongtimecalculationsandgreatcomplexityinhardwareimplementation.FrequencydomaindetectorisrepresentedbyWelchmethodRealizedDopplerfiltersbankwhichwillreducethetimecalculation.Theproposedmethodenhancesthetargetdetectioncapabilitiesbyprovidinghigherdetectionprobabilitiesorlowerfalsealarmrates.Theperformanceofthetwosystems,thetraditionalMTD-IandWelchmethodarecomparedfromtheviewpointofprobabilityofdetection(Pd),probabilityoffalsealarm(Pfa).Computersimulationresultsarepresentedtosupportthesuperiorityoftheproposedtechnique.

简介：WiththedeepresearchofknowledgeengineeringandthewidespreadapplicationsofCADtechnology,thejoiningofknowledgeengineeringwithCADisthefocusofadvancedmanufacturing.Anintelligentapproachispresentedforconfiguratingthetypicalstructuralcomponentsofradar.Casebasedreasoning,rulebasedreasoning,geometric,constraintsolvinganddomainontologyaremergedintoacompoundknowledgemodel.Themainframeandworkflowofradartypicalstructuralcomponentdesignsystemareillustrated.Experimentsshowthisapproachisefficientandeffective.

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