2-D Pipelined Adaptive Filters Based on 2-D Delayed LMS Algorithm

Katsushige MATSUBARA  Kiyoshi NISHIKAWA  Hitoshi KIYA  

IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences   Vol.E80-A   No.6   pp.1009-1014
Publication Date: 1997/06/25
Online ISSN: 
Print ISSN: 0916-8508
Type of Manuscript: Special Section PAPER (Special Section of Papers Selected from 1996 International Technical Conference on Circuits/Systems, Computers and Communications(ITC-CSCC'96))
pipelining,  two-dimensional LMS algorithm,  delayed LMS algorithm,  

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A pipelined adaptive digital filter (ADF) architecture based on a two-dimensional least mean square algorithm is proposed. This architecture enables the ADF to be operated at a high clock rate and reduction of the required amount of hardware. To achieve this reduction we introduce a new building unit, called a block, and propose implementing the pipelined ADF using the block, Since the number of blocks in a cell is adjustable, we derive a condition for satisfying given specifications. We show the smallest number of blocks and the corresponding delay can be determined by using the proposed method.