Title :
Multiplication-free adaptive digital filters
Author :
Park, T.H. ; Youn, D.H. ; Cha, I.W.
Author_Institution :
Dept. of Electron. Eng., Yonsei Univ., Seoul, South Korea
fDate :
5/1/1988 12:00:00 AM
Abstract :
The authors update delta modulation digital filter weights using the LMS (least-mean-squares) and the SIGN algorithms to realize an adaptive digital filter without multiplication operations. It is shown that using the SIGN algorithm results in an adaptive filter that can be implemented using the simple up/down counting operations. Learning curves demonstrating convergence properties of the algorithms for a system identification problem are presented
Keywords :
adaptive systems; convergence; delta modulation; digital filters; LMS algorithm; SIGN algorithm; adaptive digital filters; convergence properties; delta modulation; learning curves; least-mean-squares; multiplication-free structure; system identification problem; up/down counting operations; weights updating; Algebra; Arm; Delta modulation; Digital filters; Educational institutions; Electromagnetics; H infinity control; Magnetic fields; Physics; Quantum mechanics;
Journal_Title :
Proceedings of the IEEE
