By Topic

A step-by-step modeling technique using a generalized adaptive IIR delay filter

Sign In

Cookies must be enabled to login.After enabling cookies , please use refresh or reload or ctrl+f5 on the browser for the login options.

Formats Non-Member Member
$33 $13
Learn how you can qualify for the best price for this item!
Become an IEEE Member or Subscribe to
IEEE Xplore for exclusive pricing!
close button

puzzle piece

IEEE membership options for an individual and IEEE Xplore subscriptions for an organization offer the most affordable access to essential journal articles, conference papers, standards, eBooks, and eLearning courses.

Learn more about:

IEEE membership

IEEE Xplore subscriptions

3 Author(s)
M. Ghavami ; Dept. of Electr. Eng., Univ. of Sci. & Defence Technol., Shahr, Iran ; S. Nader-Esfahani ; W. Rupprecht

A new modeling technique using adaptive IIR delay filters is presented. In each step of the adaptation process a significant delay parameter of the unknown system is estimated and a new parallel section which is comprised of one, two or four adaptive parameters is added to the previous sections. The number of the coefficients in each step is computed adaptively using a procedure that leads also to an improved initialization of these coefficients which are then adapted via the recursive Gauss-Newton algorithm. Computer simulation results are presented to illustrate the robust convergence properties of the proposed adaptive technique, particularly in modeling unknown systems with impulse responses that include sparse blocks, e.g., a multiple echo path. Because of the parallel and, at most, two-pole structure of the filter sections the stability monitoring requires essentially no computations and the gradient complexity in each adaptive step will be less than that of the parallel realization of adaptive IIR filters

Published in:

IEEE Transactions on Circuits and Systems II: Analog and Digital Signal Processing  (Volume:43 ,  Issue: 7 )