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Adaptive support vector machine decision feedback equalizer

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3 Author(s)
Zhang, Sumin ; School of Electronic and Information Engineering, Beihang University, Beijing 100191, P. R. China; The 54th Institute of China Electronics Technology Group Corporation, Shijiazhuang 050081, P. R. China ; Li, Shu ; Su, Donglin

An adaptive support vector machine decision feedback equalizer (ASVM-DFE) based on the least square support vector machine (LS-SVM) is proposed, it solves linear system iteratively with less computational intensity. An adaptive non-singleton fuzzy support vector machine decision feedback equalizer (ANSFSVMDFE) is also presented, it adopts the non-singleton fuzzy Gaussian kernel function with similar characteristic of pre-filter and is modified with a space transformation based approach. Simulations under nonlinear time variant channels show that ASVM-DFE and ANSFSVM-DFE perform very well on nonlinear equalization and ANSFSVM-DFE acts especially well in resisting abrupt interference.

Published in:

Systems Engineering and Electronics, Journal of  (Volume:22 ,  Issue: 3 )