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Design of New Channel Adaptive Equalizer for Digital TV  

Baek, Deok-Soo (Iksan national college Dept. Electronics & Information)
Lee, Wan-Bum (Arum Technology Co.)
Kim, Hyeoung-Kyun (Arum Technology Co.)
Publication Information
Journal of the Institute of Electronics Engineers of Korea TE / v.39, no.2, 2002 , pp. 17-28 More about this Journal
Abstract
Recently, the study on non-linear equalization, self-recovering equalization using the neural Network structure or Fuzzy logic, is lively in progress. In this thesis, if the value of error difference is large, coefficient adaptation rate is bigger, and if being small, it is smaller. We proposed the new FSG(Fuzzy Stochastic Gradient)/CMA algorithm combining TS(Tagaki-Sugeno) fuzzy model having fast convergence rate and low mean square error(MSE) and CMA(Constant Modulus Algorithm) which is prone to ISI and insensitive to phase alteration. As a simulation result of the designed channel adaptive equalizer using the proposed FSG/CMA algorithm, it is shown that SNR is improved about 3.5dB comparing to the conventional algorithm. 
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  • Reference
1 S. Haykin, Adaptive Filter Theory, 3nd ed. Prentice Hall, 1996
2 D. N. Godard, 'Self-Recovering Equalization and Carrier Tracking Two-Dimensional Data Communication Systems', IEEE Trans. Comms., vol. COM-28, no. 11, pp.1867-1875, Nov. 1980
3 C. R Johnson Jr, 'Admissibility in blind adaptive channel equalization,' IEEE Contr. Syst. Mag, pp. 3-15, Jan. 1991
4 Z. Ding and R. A. Kennedy, 'On the whereabouts of local minima for blind adaptive equalizers,' IEEE Trans Circuits and Systems, vol. CAS-39, pp.119-123, Feb. 1992
5 E. A. Lee, D.G. Messerschmitt, Digital Communication, 2nd ed. Kluwer Academic Publishers, Boston, 1994
6 S. Chen, S. McLaughlin, B. Mulgrew, and P. M. Grant, 'Adaptive Bayesian Decision Feedback Equalizer for Dispersive Mobile Radio Channels,' IEEE Trans. Commun., vol. 43, no. 5, pp. 1937-1946, May 1995
7 S. U. H. Qureshi, 'Adaptive Equalization', IEEE Proc., vol. 73, pp. 1349-1387, Sep. 1985