{"title":"Power Spectrum of PAM/FM and PAM/PM","authors":"G. Pelchat","doi":"10.1109/TSET.1965.5009647","DOIUrl":null,"url":null,"abstract":"Mathematical expressions are obtained for FM and PM power spectra when the modulating waveform is a constantrate random sequence of nonoverlapping pulses with arbitrary shape and amplitude distribution. These expressions essentially reduce the computation of power spectrum to the computation of the average energy spectrum of a section of the wave only two pulses in length. The results are applied to the special PAM/FM case where the modulating pulses have a rectangular shape and uniformly distributed amplitude. Spectra are plotted for several values of the deviation ratio. Results are also given for the much simpler case of binary PAM/PM for arbitrary phase deviations.","PeriodicalId":153922,"journal":{"name":"IEEE Transactions on Space Electronics and Telemetry","volume":"25 1","pages":"0"},"PeriodicalIF":0.0000,"publicationDate":"1965-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"2","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"IEEE Transactions on Space Electronics and Telemetry","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.1109/TSET.1965.5009647","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
引用次数: 2
Abstract
Mathematical expressions are obtained for FM and PM power spectra when the modulating waveform is a constantrate random sequence of nonoverlapping pulses with arbitrary shape and amplitude distribution. These expressions essentially reduce the computation of power spectrum to the computation of the average energy spectrum of a section of the wave only two pulses in length. The results are applied to the special PAM/FM case where the modulating pulses have a rectangular shape and uniformly distributed amplitude. Spectra are plotted for several values of the deviation ratio. Results are also given for the much simpler case of binary PAM/PM for arbitrary phase deviations.
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