Title :
Efficient non-intrusive divergence detection techniques in an in-service non-intrusive measurement device
Author :
Ng, Wai Pang ; Elmirghani, J.M.H. ; Broom, S.
Author_Institution :
Dept. of Electr. & Electron. Eng., Univ. of Wales Swansea, UK
fDate :
11/9/2000 12:00:00 AM
Abstract :
Efficient non-intrusive techniques that minimise divergence and enable optimal echo path modelling of noise-impaired speech telephony circuits are proposed. Original simulation results show a modelling misadjustment improvement of 28 dB at an echo-to-noise ratio of 0 dB over 1 s adaptation using conventional real-time least-mean-square digital adaptive filter systems
Keywords :
adaptive filters; digital filters; echo suppression; identification; least mean squares methods; speech intelligibility; telephone interference; adaptive system identification; echo-to-noise ratio; four-wire digital trunk echo; in-service nonintrusive measurement device; least-mean-square digital adaptive filter; modelling misadjustment improvement; noise-impaired speech telephony circuits; nonintrusive divergence detection techniques; optimal echo path modelling; real-time LMS adaptive filter systems;
Journal_Title :
Electronics Letters
DOI :
10.1049/el:20001374
