{"title":"Blind Identification and Digital Compensation of Memory Nonlinearities for Multiband Systems","authors":"Jiang Jin, Juan Peng","doi":"10.1109/CMC.2010.59","DOIUrl":null,"url":null,"abstract":"Memory nonlinearities exist in electronic devices or transmission links. A blind identification method is proposed to estimate the Volterra inverse of memory nonlinearities for multiband system by minimizing the strong out-of-band spurs above the preset threshold based on domain transformation and spur classification. The inverse model is employed to recover the noisy sampled signal or improve the spurious-free dynamic range of memory nonlinear system by applying post-distortion or pre-distortion compensation. It can also used as multiband digital filter with varying intermediate frequency or bandwidth. In time-varying system, the filter coefficients can be updated adaptively by iterate search. The experiment results demonstrate the effectiveness.","PeriodicalId":296445,"journal":{"name":"2010 International Conference on Communications and Mobile Computing","volume":"135 1","pages":"0"},"PeriodicalIF":0.0000,"publicationDate":"2010-04-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"2","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"2010 International Conference on Communications and Mobile Computing","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.1109/CMC.2010.59","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
Memory nonlinearities exist in electronic devices or transmission links. A blind identification method is proposed to estimate the Volterra inverse of memory nonlinearities for multiband system by minimizing the strong out-of-band spurs above the preset threshold based on domain transformation and spur classification. The inverse model is employed to recover the noisy sampled signal or improve the spurious-free dynamic range of memory nonlinear system by applying post-distortion or pre-distortion compensation. It can also used as multiband digital filter with varying intermediate frequency or bandwidth. In time-varying system, the filter coefficients can be updated adaptively by iterate search. The experiment results demonstrate the effectiveness.