Journal of Institute of Control, Robotics and Systems (제어로봇시스템학회논문지)

Institute of Control, Robotics and Systems (제어로봇시스템학회)
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An Adaptive Volterra Series-based Nonlinear Equalizer Using M-band Wavelet Transform

M-band 웨이블릿 변환을 이용한 볼테라 적응 등화기

  • Kim, Young-Keun (Dept. of Electronic Electrical Engineering, Hanyang University) ;
  • Kang, Dong-Jun (Dept. of Electronic Electrical Engineering, Hanyang University) ;
  • Nam, Sang-Won (Dept. of Electronic Electrical Engineering, Hanyang University)
  • 김영근 (한양대학교 전자전기공학부) ;
  • 강동준 (한양대학교 전자전기공학부) ;
  • 남상원 (한양대학교 전자전기공학부)
  • Published : 2001.05.01
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Abstract

This paper proposes and adaptive nonlinear equalizer based on Volterra Series along with M-band wavelet transform(M-DWT). The proposed wavelet transform-domain approach leads to diagonalization of the input vector auto-correlation matrix, which yields clustering its eigenvalue spread around one, and improving the convergence rate of the corresponding transform-domain LMS algorithm. In particular, the proposed adaptive Volterra equalizer is employed to compensate for the output distortion produced by a weakly nonlinear system. Finally, some simulation results obtained by using a TWT amplifier model are provide to demonstrated the converging performance of the proposed approach.

Keywords

References

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