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[Keyword] block estimation(1hit)

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  • Block Estimation Method for Two-Dimensional Adaptive Lattice Filter

    InHwan KIM  Takayuki NAKACHI  Nozomu HAMADA  

     
    PAPER-Digital Signal Processing

      Vol:
    E80-A No:4
      Page(s):
    737-744

    In the adaptive lattice estimation process, it is well known that the convergence speed of the successive stage is affected by the estimation errors of reflection coefficients in its preceding stages. In this paper, we propose block estimation methods of two-dimensional (2-D) adaptive lattice filter. The convergence speed of the proposed algorithm is significantly enhanced by improving the adaptive performance of preceding stages. Furthermore, this process can be simply realized. The modeling of 2-D AR field and texture image are demonstrated through computer simulations.