By Topic

Inverse kepstrum approach to FIR RLS algorithm and application to adaptive noise cancelling

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
$31 $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

1 Author(s)
Jinsoo Jeong ; Fac. of Biomed. Eng. & Health Sci., Univ. Teknol. Malaysia, Skudai, Malaysia

This paper presents inverse kepstrum approach as innovations-based whitening application to FIR RLS filter and its application to two-microphone adaptive noise cancellation. The method uses identification of acoustic path transfer functions between two microphones and the ratio of acoustic path transfer function is then applied as unknown system to adaptive noise cancelling structure. The application is based on innovations-based Wiener filtering structure, where front-end inverse kepstrum (known elsewhere as complex cepstrum) estimates denominator polynomial part with a stable minimum phase from the ratio of overall acoustic transfer function and then a cascaded adaptive zero-model RLS filter estimates remaining part from the overall acoustic transfer function. As a result, it will be shown that an innovations-based kepstrum approach could be applied to adaptive noise cancelling with minimum phase conversion of nonminimum phase term from denominator polynomial, which may naturally be occurred in reverberant room environment, therefore could ultimately give rise to stability of system.

Published in:

Industrial Technology (ICIT), 2010 IEEE International Conference on

Date of Conference:

14-17 March 2010