期刊网_中国期刊网

ACCURATE VARIATIONAL ANALYSIS FOR MEASUREMENT OF COMPLEX DIELECTRIC CONSTANT OF THE SAMPLE ROD INSERTED IN A CAVITY

简介：ThispaperderivestheLindellformulabasedonthegeneralizedvariationalprinciple.ForthecomplexdielectricconstantmeasurementofasmalllossydielectricrodwithRayleigh-Ritzmethod,anaccuratevariationalanalysisisgiven.Theconceptofcomplexfrequencyisintroducedingeneral,andthestabilityofthesolutionisdiscussed.Comparingwiththeresultofperturbationmethod,itisconcludedthatthedeviationofperturbationalgorithmshouldbetakenintoconsideration.
标签： General VARIATIONAL principle Lindell FORMULATION Complex

全文阅读

简介：MonteCarlosimulationofthediffusingtemporallightcorrelationinamulti-layeredturbidmediumisconsidered.Astraightforwardformulaisintroducedtocalculateaccuratelyandefficientlytheautocorrelationfunctionatanydetectorposition.Thesimulationresultsareinanexcellentagreementwithananalyticalsolutionofthecorrelationdiffusionequation.
标签：光学性质衍射传播方程自相关函数传播介质

全文阅读

ACCURATE DETECTION OF HIGH-SPEED MULTI-TARGET VIDEO SEQUENCES MOTION REGIONS BASED ON RECONSTRUCTED BACKGROUND DIFFERENCE

简介：Thepaperfirstdiscussesshortcomingsofclassicaladjacent-framedifference.Secondly,basedontheimageenergyandhighorderstatistic(HOS)theory,backgroundreconstructionconstraintsaresetup.Underthehelpofblock-processingtechnology,backgroundisreconstructedquickly.Finally,backgrounddifferenceisusedtodetectmotionregionsinsteadofadjacentframedifference.TheDSPbasedplatformtestsindicatethebackgroundcanberecoveredlosslesslyinaboutonesecond,andmovingregionsarenotinfluencedbymovingtargetspeeds.Thealgorithmhasimportantusagebothintheoryandapplications.
标签： MOTION DETECTION BACKGROUND reconstruction Image energy

全文阅读