Beat Noise Suppression Using Adaptive Line Enhancers for FM Radio in Motor Vehicles

カテゴリ: 論文誌(論文単位)

グループ名: 【C】電子・情報・システム部門

発行日: 2018/05/01

タイトル(英語): Beat Noise Suppression Using Adaptive Line Enhancers for FM Radio in Motor Vehicles

著者名: Arata Kawamura (Graduate School of Engineering Science, Osaka University), Takahiro Yamashita (Graduate School of Engineering Science, Osaka University), Youji Iiguni (Graduate School of Engineering Science, Osaka University)

著者名(英語): Arata Kawamura (Graduate School of Engineering Science, Osaka University), Takahiro Yamashita (Graduate School of Engineering Science, Osaka University), Youji Iiguni (Graduate School of Engineering Science, Osaka University)

キーワード: FM radio，beat noise，adaptive line enhancer

要約(英語): There exists interference in a frequency modulation (FM) radio wave in a motor vehicle. The interference is called as a beat noise which is an electromagnetic radiation caused from electronic devices equipped on the motor vehicle. The beat noise becomes a perceptual sinusoidal noise and/or breaks a spectral structure of a broadcasting sound. It is required to suppress the beat noise by using a low cost device such as a DSP with a low-clock frequency. This paper proposes a noise suppressor employing two adaptive line enhancers as a promising method to be implementable on a DSP with low-clock frequency. We apply the proposed noise suppressor to signals obtained in the middle of the demodulation process. Simulation results show that the proposed method effectively suppresses the beat noise and extracts the broadcasting sound with high accuracy.

本誌: 電気学会論文誌C（電子・情報・システム部門誌） Vol.138 No.5 （2018） 特集：データの計測・解析と制御技術への応用

本誌掲載ページ: 593-602 p

原稿種別: 論文／英語

電子版へのリンク: https://www.jstage.jst.go.jp/article/ieejeiss/138/5/138_593/_article/-char/ja/