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Blind Iterative Non-linear Distortion Compensation Based on Thresholding

Azghani, M ; Sharif University of Technology | 2016

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  1. Type of Document: Article
  2. DOI: 10.1109/TCSII.2016.2608866
  3. Publisher: Institute of Electrical and Electronics Engineers Inc , 2016
  4. Abstract:
  5. The sampling process in electrical devices includes non-linear distortion which needs to be compensated to boost up the system efficiency. In this paper, a blind method is suggested for non-linear distortion compensation. The core idea is to leverage the sparsity of the signal to cope with the ill-posedness of the distortion compensation task. The proposed scheme is an iterative method based on out of support energy minmization where the support information is not available. An adaptive thresholding operator is used to give a rough approximation of the support according to the estimated signal at each iteration. Various simulation scenarios have validated the capability of the suggested scheme in compensating the miscellaneous distorting functions and have confirmed its superiority over the other techniques
  6. Keywords:
  7. Blind distortion compensation ; Nonlinear distortion compensation ; Sparsity ; Distortion (waves) ; Nonlinear distortion ; Adaptive thresholding ; Distortion compensation ; Electrical devices ; Iterative thresholding ; Rough approximations ; Sampling process ; System efficiency ; Iterative methods
  8. Source: IEEE Transactions on Circuits and Systems II: Express Briefs ; Volume PP, Issue 99 , 2016 ; 15497747 (ISSN)
  9. URL: http://ieeexplore.ieee.org/document/7565585