잡음에 강건한 핸드프리 통신용 음향 반향제거 시스템

• 영문명: A Noise Robust Acoustic Echo Cancellation System for Hands-Free Telephony
• 발행기관: 한국산업기술융합학회(구. 산업기술교육훈련학회)
• 저자명: 이영호(Young Ho Lee) 조철수(Cheol Soo Cho)
• 간행물 정보: 『산업기술연구논문지』산업기술교육훈련논문지 제18권 2호, 71~74쪽, 전체 4쪽
• 주제분류: 공학 > 공학일반
• 파일형태: PDF
• 발행일자: 2013.06.30

영문 초록

In this paper, a noise robust acoustic echo cancellation system is proposed. Original AP(Affine Projection) algorithm has fast convergence speed in colored input signal but has noise amplification problem. So the proposed acoustic echo cancellation system uses Modified AP(Affine Projection) algorithm which normalizes the update equation by adding the multiplication of error power and projection order to autocovariance matrix of input signal. Through various computer simulations, we proved that the proposed algorithm performed well in noisy environment. Simulation results show the improved AIC(acoustic interference cancellation) performance than nlms and original AP algorithm.

목차

ABSTRACT

Ⅰ. 서론

Ⅱ. 제안하는 반향제거 알고리즘

Ⅲ. 컴퓨터 시뮬레이션

Ⅳ. 결론

참고문헌

키워드

음향 반향 제거 정규화LMS 반향 간섭 제거 Acoustic Echo Cancelation NLMS AP(Affine Projection) AIC