学科分类
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4 个结果
  • 简介:Movingtargetdetection(MTD)techniqueisdesignedtofilteringouttheclutters.ThebasisoftheMTDdigitalsignalprocessorisabankofDopplerfiltersdesignedusingFFTalgorithm.Forhighpulserepetitionfrequency(HPRF),itleadstoalongtimecalculationsandgreatcomplexityinhardwareimplementation.FrequencydomaindetectorisrepresentedbyWelchmethodRealizedDopplerfiltersbankwhichwillreducethetimecalculation.Theproposedmethodenhancesthetargetdetectioncapabilitiesbyprovidinghigherdetectionprobabilitiesorlowerfalsealarmrates.Theperformanceofthetwosystems,thetraditionalMTD-IandWelchmethodarecomparedfromtheviewpointofprobabilityofdetection(Pd),probabilityoffalsealarm(Pfa).Computersimulationresultsarepresentedtosupportthesuperiorityoftheproposedtechnique.

  • 标签: 运动目标检测 频域 检测器 多普勒滤波器 数字信号处理器 高脉冲重复频率
  • 简介:WiththedeepresearchofknowledgeengineeringandthewidespreadapplicationsofCADtechnology,thejoiningofknowledgeengineeringwithCADisthefocusofadvancedmanufacturing.Anintelligentapproachispresentedforconfiguratingthetypicalstructuralcomponentsofradar.Casebasedreasoning,rulebasedreasoning,geometric,constraintsolvinganddomainontologyaremergedintoacompoundknowledgemodel.Themainframeandworkflowofradartypicalstructuralcomponentdesignsystemareillustrated.Experimentsshowthisapproachisefficientandeffective.

  • 标签: 计算机应用 雷达 知识共享 人工智能