Adaptive Step-Size NCLMS Algorithm for Double–Talk Echo Canceling
عنوان مقاله: Adaptive Step-Size NCLMS Algorithm for Double–Talk Echo Canceling
شناسه ملی مقاله: ICEE16_106
منتشر شده در شانزدهمین کنفرانس مهندسی برق ایران در سال 1387
شناسه ملی مقاله: ICEE16_106
منتشر شده در شانزدهمین کنفرانس مهندسی برق ایران در سال 1387
مشخصات نویسندگان مقاله:
Abolhasan Rezapour Kourandeh - Emam Hosein University - Tarbiat Modares University, Tehran, Iran
خلاصه مقاله:
Abolhasan Rezapour Kourandeh - Emam Hosein University - Tarbiat Modares University, Tehran, Iran
In systems, such as hands-free mobile telephony, Voice over Internet Protocol (VoIP), voice control, hearing aids, public address and teleconferencing, we are still faced with echo problem. Adaptive digital filters have been vastly used for the echo canceling by estimating the reverberation room impulse response. When a strength Near-End Talker (NET) signal exists, the adaptation process of the conventional algorithms misleads. In this paper, based on the correlation functions, we introduce a new algorithm named as Adaptive Step-size Normalized Correlation-based Least Mean Square (ASNCLMS) algorithm, which is robust even in the presence of NET signal. This algorithm doesn’t freeze the adaptation process during Double-Talk (DT) mode. Computer
simulations, which prove the robustness of this algorithm, are also presented.
کلمات کلیدی: Echo canceling, Single-talk, Doubletalk, Correlated signals, Correlation function
صفحه اختصاصی مقاله و دریافت فایل کامل: https://civilica.com/doc/47604/