标签: crest

CrestFactorAndItsInfluenceOnOFDMSystemGetToKnowCrestFactorAndItsInfluenceOnTheDesignOfOFDM-BasedSystemsThisarticleisthethirdinaseriesofquarterlyguestcolumnsbyJustinPanzer,managerofproductmarketing,Rohde&Schwarz.ThisinstallmentiscoauthoredbyBernhardKaehs,aseniordevelopmentexpertinthecompany’sbroadcastingdivision.Theexceptionalperformanceofwirelesscommunicationssystemsandmostrecentlytelevisionbroadcastingisdeliveredinlargemeasurebydigitaltransmissiontechnologyandmorespecificallybyhigher-ordermodulationschemessuchasOrthogonalFrequencyDivisionMultiplexing(OFDM).However,theypresentmajordesignchallenges,sinceOFDMsystemscanhavepeak-to-averagepowerratiosashighas20:1,makingitessentialtocarefullyspecifyRFpowercomponentsin……