Authors:
Lino García Morales
and
Fernando Juan Berenguer Císcar
Affiliation:
Escuela Superior Politécnica,Universidad Europea de Madrid, Spain
Keyword(s):
Multichannel Adaptive Filtering, System Identification, Optimization Method, Conjugate Gradient, Partitioned Frequency-Domain Adaptive Filtering.
Related
Ontology
Subjects/Areas/Topics:
Adaptive Signal Processing and Control
;
Informatics in Control, Automation and Robotics
;
Optimization Problems in Signal Processing
;
Signal Processing, Sensors, Systems Modeling and Control
;
System Identification
Abstract:
The conjugate gradient is the most popular optimization method for solving large systems of linear equations. In a system identification problem, for example, where very large impulse response is involved, it is necessary to apply a particular strategy which diminishes the delay, while improving the convergence time. In this paper we propose a new scheme which combines frequency-domain adaptive filtering with a conjugate gradient technique in order to solve a high order multichannel adaptive filter, while being delayless and guaranteeing a very short convergence time.