简介：ＲａｄａｒＳｙｓｔｅｍＥｎｇｉｎｅｅｒｉｎｇ￥ＤａｌｅＲ．Ｂｉｌｌｅｔｔｅｒ（ＲａｙｔｈｅｏｎＣｏｍｐａｎｙ，Ｍａｓｓａｃｈｕｓｅｔｔｓ．ＵＳＡ）ＷＨＡＴＩＳＲＡＤＡＲＳＹＳＴＥＭＥＮＧＩＮＥＥＲＩＮＧ？Ａｎｏｒｇａｎｉｚａｔｉｏｎｄｅｓｉｒｅｄｔｏ...

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简介：TheJournalofSystemsEngineeringandElectronics(EnglishEdition)isacomprehensiveacademicperiodicaljointlysponsoredbytheSecondAcademyofChinaAerospaceScienceandIndustryCorporation,theChineseSocietyofAstronautics,theSystemsEngineeringSocietyofChinaandtheChineseAssociationforSystemSimulation.Itstartedpublicationin1990,andnowappearsfourtimesayear,distributedathomeandabroad.

简介：TheJournalofSystemsEngineeringandElectronicsisacomprehensiveacademicperiodicaljointlysponsoredbyDefenseTechnologyAcademyofChinaAerospaceScience&IndustryCorporation,ChineseSocietyofAstronautics,SystemEngineeringSocietyofChina,andChineseAssociationforSystemSimulation.Itstartedpublicationin1990,andnowispublishedbimonthly.Pursuingbothintensivenessandextensiveness,

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简介：Incontrasttothemainstreamofstudyingthechaoticbehaviorofagivenmap,constructingchaoticmaphasattractedmuchlessattention.Inthispaper,weproposesimpleanalyticalmethodforconstructingone-dimensionalcontinuousmapswithcertainspecificperiodicpoints.Further,weobtainresultsfortheexistenceofchaoticphenomenoninthesenseofLiandYorke.Someexamplesarealsoanalyzedusingtheproposedmethods.

简介：ＰｒｏｌｏｇｔｏｔｈｅＳｅｃｔｉｏｎｏｎＲａｄａｒＳｙｓｔｅｍＥｎｇｉｎｅｅｒｉｎｇ￥／／ＩｎｔｈｅＥｎｇｌｉｓｈｌａｎｇｕａｇｅｗｅｈａｖｅａｎｅｘｐｒｅｓｓｉｏｎｔｈａｔｓａｙｓｉｔｉｓｐｏｓｓｉｂｌｅ＂ｔｏｌｏｓｅｓｉｇｈｔｏｆｔｈｅｆｏｒｅｓ...

简介：Thisjournalisdevotedtotheadvancementofthescienceandtechnologyofsystemsengineeringandelectronicsthroughthedisseminationoforiginalarchivalresearchpapersdisclosingsignificanttechnicalknowledge,exploratorydevelopments,andapplicationsinastronautics,aeronautics,andrelatedfields.Inaddition,thejournalalsopublishessurvey,expositoryandtutorialpapers.Boththeoryandapplicationswillbeequallyemphasized.

简介：TheEnglishconstruction'XandY'referstothecoordinationoftwowordswithandasconjunction,XandYbeingofthesamepartofspeechandparallelmeanings.ThispaperisacognitivestudyofthelinearorderoftheEnglishconstruction'XandY'fromtheperspectivesofcognitivesalience,cognitiveiconicity,andcognitionofformalrules.Thelinearcharacteristicsof'XandY'arerevealedasfollows:1)salience-downgradingorder;2)chronologicaliconicity;3)cognitionofalphabeticorderandprosodicorder.

简介：Compressivesensing(CS)hasemergedasanovelsamplingframeworkwhichenablessparsesignalacquisitionandreconstructionwithfewermeasurementsbelowtheNyquistrate.AnimportantissueforCSistheconstructionofmeasurementmatrixorsensingmatrix.Anewdeterministicsensingmatrix,namedasOOC-B,isproposedbyexploitingopticalorthogonalcodes(OOCs),BernoullimatrixandSingerstructure,whichhastheentriesof0,+1and-1beforenormalization.Wehaveproventhatthedesigneddeterministicmatrixisasymptoticallyoptimal.Inaddition,theproposeddeterministicsensingmatrixisappliedtodirectionofarrival(DOA)estimationofnarrowbandsignalsbyCSarrays(CSA)processingandCSrecovery.TheoreticalanalysisandsimulationresultsshowthattheproposedsensingmatrixhasgoodperformanceforDOAestimation.ItisveryeffectiveforsimplifyinghardwarestructureanddecreasingcomputationalcomplexityinDOAestimationbyCSAprocessing.Besides,lowerrootmeansquareerror(RMSE)andbiasareobtainedinDOAestimationbyCSrecovery.

简介：Thepaperproposesanovelalgorithmtogettheencryptionmatrix.Firstly,achaoticsequencegeneratedbyChebyshevchaoticneuralnetworksisconvertedintoaseriesoflow-orderintegermatricesfromwhichavailableencryptionmatricesareselected.Then,ahigherorderencryptionmatrixrelatingrealworldapplicationisconstructedbymeansoftensorproductionmethodbasedonselectedencryptionmatrices.Theresultsshowthattheproposedalgorithmcanproducea'one-timepadcipher'encryptionmatrixwithhighsecurity;andtheencryptionresultshavegoodchaosandauto-correlationwiththenaturalfrequencyoftheplaintextbeinghiddenandhomogenized.

简介：(GMPLS)一般多协议标签切换基于交通工程是可能的方法之一实现所有光的网络。这个方法与IP技术实现网络并且与交通工程保证服务质量。基于选择光路径的计划和交通计算的方法的建立，所有光的网络的波长路由选择算法被与最短路径和交通工程的优先的线路结合基于交通工程介绍，算法过程被给，并且实际例子在模拟计算以后象分析一样被介绍。这研究结果为所有光的网络的光开关技术的成就有某些意义。

简介：ThislettergivesarandomconstructionforLowDensityParityCheck(LDPC)codes,whichusesaniterativealgorithmtoavoidshortcyclesintheTannergraph.TheconstructionmethodhasgreatflexiblechoiceinLDPCcode'sparametersincludingcodelength,coderate,theleastgirthofthegraph,theweightofcolumnandrowintheparitycheckmatrix.ThemethodcanbeappliedtotheirregularLDPCcodesandstrictregularLDPCcodes.Systemiccodeshavemanyapplicationsindigitalcommunication,sothisletterproposesaconstructionofthegeneratormatrixofsystemicLDPCcodesfromtheparitycheckmatrix.Simulationsshowthatthemethodperformswellwithiterativedecoding.

简介：Ageneralmethodofconstructingproxyblindsignatureisproposedbasedonmultilineartransform.Basedonthismethod,thefourproxyblindsignatureschemesarecorrespondentlygeneratedwithfourdifferentsignatureequations,andeachofthemhasfourformsofvariationsofsigns.Hencetherearesixteensignaturesinall,andallofthemareproxystronglyblindsignatureschemes.Furthermore,thetwodegeneratedsituationsofmulti-lineartransformarediscussed.Theircorrespondingproxyblindsignatureschemesareshown,too.Butsomeschemescomefromoneofthesedegeneratesituationsareproxyweakly-blindsignaturescheme.Thesecurityforproposedschemeisanalyzedindetails.Theresultsindicatethatthesesignatureschemeshavemanygoodpropertiessuchasunforgeability,distinguish-abilityofproxysignature,non-repudiationandextensivevalueofapplicationetc.