Abstract
In this report, we propose a high-performance pipelined VLSI architecture of the LMS adaptive filter derived by a cut-set retiming technique. The proposed architecture has a peculiar pipelined form with 3 adaptation delays, and the FIR filter portion has a peculiar class of the transposed form providing a minimum output latency and coefficient delay. Both the delays, the adaptation delay and coefficient delay, are compensated by a look-ahead conversion. A new high-speed 4-input and 2-output CSA type adder with a small hardware is employed. The proposed architecture can achieve a good convergence property, high-sampling rate, minimum output latency, small hardware, and lower power dissipation, simultaneously, and is very suitable to implement on the VLSI.
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More From: IEICE Transactions on Fundamentals of Electronics, Communications and Computer Sciences
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