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ThinkMind // ADAPTIVE 2013, The Fifth International Conference on Adaptive and Self-Adaptive Systems and Applications // View article adaptive_2013_2_10_50025


A FPGA Implementation of Prediction Error Method for Adaptive Feedback Cancellation using Xilinx System Generator

Authors:
Marius Rotaru
Cristian Stanciu
Silviu Ciochina
Felix Albu
Henri Coandă

Keywords: Adaptive Algorithm; Adaptive Feedback Cancellation; Prediction Error; MLMS; FPGA; Xilinx System Generator

Abstract:
This paper describes a real-time, field programmable gate array (FPGA) implementation of Feedback Cancellation (FC) system to improve the intra-cabin communication among the driver and passengers, which is typically degraded by the noisy environment and by the distance in between them. The feedback canceller, used to reduce the acoustic coupling the loudspeaker and the microphone, is based on the continuously adaptive filtering technique, implementing the prediction error method (PEM) for closed loop system identification. The adaptive algorithm implements the modified least mean square algorithm (MLMS) while for the linear prediction a fix-order linear predictor has been selected. The implementation was done using Xilinx System GeneratorTM (XSG)

Pages: 26 to 29

Copyright: Copyright (c) IARIA, 2013

Publication date: May 27, 2013

Published in: conference

ISSN: 2308-4146

ISBN: 978-1-61208-274-5

Location: Valencia, Spain

Dates: from May 27, 2013 to June 1, 2013

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