自適應跳頻通信系統(tǒng)抗干擾性能研究.pdf

1、大連理工大學碩士學位論文自適應跳頻通信系統(tǒng)抗干擾性能研究姓名：劉震宇申請學位級別：碩士專業(yè)：電子與通信工程指導教師：邱天爽陳永真20080601大連理工人學專業(yè)學位碩士學位論文AntijammingPerformanceAnalysisofAnAdaptiveFrequencyHoppingCommunicationSystemAbstractDependingonthedevelopmentofreconnaissanceandint

2、erferencetechniques，spread—frequencycommunicationisgraduallybecomingtheeffectivecommunicationmannerinordertoreducetheprobabilityofbeingcapturedorinterfered，toenhancethesecurityofcommunication，andtoimprovetheantijammingab

3、ilityofthecommunicationsystemFrequencyhopping(FH)communicationispartofthespread—frequencycommunicationBecauseofthepowerfulabilitiesofmultiaddressandanti—interference，spreadfrequencyandFHareusedbothinmilitaryandcivilfield

4、smoreandmorefrequentlyInrecentyears，adaptivefrequencyhopping(AFH)developsasanimportantmeasureofelectroncounterworkthatintegratesadaptivefrequencywithadaptivepowercontrolbasedonautomaticlinkqualityanalysisThesystemcankeep

5、highqualitycommunicationlongterminno—interferenceorless—interferencechannels，withminimumtransmittingpowerandlowprobabilityofinterceptThepaperillustratethebasictheoryofadaptivefrequencyhopcommunicationsystemandmakesdeepre

6、searchesinsomecoretechnologiesasFHsynchronization，Real—timelinkqualityanalysis，frequencyandpoweradaptivecontr01Themethodthatevaluatesthelinkqualitybasedonsignalnoiseratioestimationhasbeenintroducedandsimulated；therealiza

7、tionofFHseriesisintroducedandthepaperalsosimulatestheexperimentonFHpattern；Thepaperalsodesignasimulationschema，whichcanbeappliedtoexploretheprocessofFHsystemanditsanti—disturbanceperformance，embodyingthecharactersof“Four

8、combination”O(jiān)nthebasisofthescheme，thepapersimulatesandcomparestheantidisturbanceperformanceofthenormalFHsystemandadaptiveFHsystemTheresultsshowthatthebyteerrorrateoftheadaptiveFHsystemismuchlessAtlast，thepaperalsomakesco

9、mparisonsbetweentheimpactsofseveralcommonartificialdisturbancemethodsonFHsystemTheanti—disturbancemethodbasedonfrequencybranchtechnologyisintroducedTheresultofthesimulationshowsthatitcanimprovetheanti—disturbanceperforma