کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
565147 875679 2006 17 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Frequency-domain adaptive Kalman filter for acoustic echo control in hands-free telephones
موضوعات مرتبط
مهندسی و علوم پایه مهندسی کامپیوتر پردازش سیگنال
پیش نمایش صفحه اول مقاله
Frequency-domain adaptive Kalman filter for acoustic echo control in hands-free telephones
چکیده انگلیسی

Acoustic echo canceler and postfilter for residual echo suppression are two essential building blocks of a hands-free voice communication system. Based on the Kalman filter theory, we derive a simple and advanced algorithm for the optimum joint statistical adaptation of both filter coefficients in time-varying and noisy acoustic environments. The Kalman filter utilizes a stochastic state-space model of the acoustic echo path which is formulated entirely in the frequency-domain. The resulting adaptive algorithm is computationally efficient and inherently robust, i.e., the adaptation does not require additional regularization or control mechanisms.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Signal Processing - Volume 86, Issue 6, June 2006, Pages 1140–1156
نویسندگان
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