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Optimum block adaptive filtering algorithms using the preconditioning technique

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2 Author(s)
Jae Sung Lim ; Dept. of Comput. Sci., Korea Adv. Inst. of Sci. & Technol., Seoul, South Korea ; Chong Un

We propose three block adaptive algorithms using the preconditioning technique. The Toeplitz-preconditioned optimum block adaptive (TOBA) algorithm employs a preconditioner assumed to be Toeplitz, the symmetric successive overrelaxation (SSOR)-preconditioned optimum block adaptive (SOBA) algorithm uses a product of triangular matrices as a preconditioner, and the circulant-preconditioned OBA (COBA) algorithm is based on a circulant preconditioner. It is also shown that their tracking properties and convergence rates are superior to those of the OBA algorithm, the self-orthogonizing block adaptive filter (SOBAF), and the normalized frequency-domain OBA (NFOBA) algorithm

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Signal Processing, IEEE Transactions on  (Volume:45 ,  Issue: 3 )