| Title |
A Study on the Co-LMS Algorithm Characteristics of Real-time Applicants for Road Environment Calming |
| Authors |
문학룡(Moon, Hak-Ryong) ; 손진근(Shon, Jin-Geun) |
| DOI |
https://doi.org/10.5370/KIEEP.2014.63.3.157 |
| Keywords |
Active noise control(ANC) ; Co(correlation)-least mean square(LMS) ; Filtered-X LMS ; Road noise environment ; Secondary noise path ; Transfer function |
| Abstract |
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. |