Multiplication Free Adaptive Digital Filter
park taeho, Il-Hwan Cha, Dae-Hui Yun · The Journal of the Acoustical Society of Korea · 1987
Multiplication free adaptive digital filtering algorithms are discussed. The proposed. The proposed algorithm uses delta modulation digital filter and the relevant filter weights are updated using the SIGN algorithms to realize an adaptive digital filter without multiplication operations. It is shown that the resulting algorithm can be implemented using simple up/down counting operations. The convergence characteristics of the proposed adaptive digital filtering algorithm and .others are investigated for a system identification problem.