{"title":"Implementation of a linearized power amplifier using the predistorter and direct conversion technique","authors":"C. Jung, B. Y. Ryu, Han-kyu Park","doi":"10.1109/ICCS.1994.474064","DOIUrl":null,"url":null,"abstract":"A linearization system with a digital adaptive predistorter is implemented in order to restrict the spectral spreading and adjacent channel interference in mobile radio systems. Using the output of amplifiers which is directly down-converted to a baseband predistorter and the quantized power of transmitted baseband signal, the look-up table is completed by an adaptive algorithm. An experiment shows that the peak to sidelobe ratio is 15 dB higher than that of a nonlinear amplifier.<<ETX>>","PeriodicalId":158681,"journal":{"name":"Proceedings of ICCS '94","volume":"198 ","pages":"0"},"PeriodicalIF":0.0000,"publicationDate":"1994-11-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"1","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Proceedings of ICCS '94","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.1109/ICCS.1994.474064","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
引用次数: 1
Abstract
A linearization system with a digital adaptive predistorter is implemented in order to restrict the spectral spreading and adjacent channel interference in mobile radio systems. Using the output of amplifiers which is directly down-converted to a baseband predistorter and the quantized power of transmitted baseband signal, the look-up table is completed by an adaptive algorithm. An experiment shows that the peak to sidelobe ratio is 15 dB higher than that of a nonlinear amplifier.<>
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