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Block Estimation Method for Two-Dimensional Adaptive Lattice Filter
InHwan KIM Takayuki NAKACHI Nozomu HAMADA
IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences
Publication Date: 1997/04/25
Print ISSN: 0916-8508
Type of Manuscript: PAPER
Category: Digital Signal Processing
block estimation, lattice filter, 2-D signal processing, adaptive algorithm,
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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.