一种窄带干扰下的波形设计方法-豆柴文库

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一种窄带干扰下的波形设计方法
Title:WaveformDesignMethodsforNarrowbandInterferenceSuppression
Abstract:
Withthegrowingdemandforwirelesscommunicationsystems,theissueofinterferencebecomesmoresignificant,particularlyinnarrowbandcommunicationscenarios.Thispaperaimstopresentvariouswaveformdesignmethodstoeffectivelymitigatetheimpactofnarrowbandinterference.Itdiscussesthechallengesposedbynarrowbandinterferenceandexploresdifferentapproachestowaveformdesign,includingfrequencyhopping,directsequencespreadspectrum,andadaptivefilteringtechniques.Theperformanceassessmentofeachmethodisevaluatedbasedonmetricssuchasbiterrorrate(BER)andsignal-to-interference-plus-noiseratio(SINR).Thefindingshighlighttheimportanceofwaveformdesigninenhancingsystemperformancebyreducingtheimpactofnarrowbandinterference.
1.Introduction:
Inwirelesscommunicationsystems,narrowbandinterferencereferstounwantedsignalsthatoccupyasmallbandwidth,typicallywithintheoperationalbandwidthoftheintendedsignal.Thisinterferencecansignificantlydegradesignalquality,leadingtoincreasedbiterrorsandreducedsystemperformance.Therefore,itiscrucialtodevelopeffectivemethodsforsuppressingnarrowbandinterferencetoensurereliableandrobustcommunication.Thispaperpresentsacomprehensiveanalysisofwaveformdesignmethodsspecificallytailoredtoaddressnarrowbandinterference.
2.ChallengesofNarrowbandInterference:
Narrowbandinterferenceposesseveralchallengesforwirelesscommunicationsystems.Oneofthemainchallengesisthattheinterferencecanvaryinfrequency,time,andpowerlevel,makingitdifficulttoaccuratelycharacterizeandmitigate.Additionally,narrowbandinterferencetendstobemoreeffectiveatdegradingsignalqualitycomparedtobroadbandinterferenceduetoitshigherpowerdensitywithinasmallerfrequencyrange.Consequently,suppressingnarrowbandinterferencerequiresspecializedwaveformdesigntechniques.
3.WaveformDesignMethods:
3.1FrequencyHopping:
Frequencyhoppingisacommonlyusedtechniquetocombatnarrowbandinterference.Itinvolvesrapidlychangingthecarrierfrequencyatregularintervalsduringtransmissio