도로환경 정온화의 실시간 적용을 위한 Co-LMS 알고리즘의 특성 고찰

• Published in: 전기학회 논문지 P권, 63(3) Vol. 63P; no. 3; pp. 157 - 162
• Main Authors: 문학룡(Hak-ryong Moon), 손진근(Jin-geun Shon)
• Format: Journal Article
• Language: Korean
• Published: 대한전기학회 2014
• Subjects: 전기공학; Co(correlation)- least mean square(LMS); Filtered-X LMS; Road noiseenvironment; Transfer function; Active noise control(ANC); Secondary noise path; Road noise environment; Co(correlation)-least mean square(LMS)
• ISSN: 1229-800X; 2586-7792

The active noise control(ANC) method for noise problems solution generally uses filtered-X LMS algorithms. However, Filtered-X LMS algorithms were mainly used but these had a limitation that had to measure a transfer function of secondary noise path. However, newly proposed correlation-LMS algorithms have slightly much calculation and are minutely behind performance, these have a advantage not in measuring transfer function onerously so that we can easily adapt these in real time. Thus Co-LMS algorithm was developed to improve the real-time implementation performance under the variable input noise such as road noise environment. In this paper, the performance of the Co-LMS is presented in comparison with that of the Filtered-X LMS algorithm. Simulation results show that active noise control using Co-LMS have slightly much calculation and are minutely behind performance, these have a advantage not in measuring transfer function onerously so that we can easily adapt these in real time.