도로소음 입력의 ANC시스템에서 실시간 적용의 CLMS 알고리즘의 성능Performance of CLMS Algorithm for Real-time Application in ANC Systems of Road Noise Input
- Other Titles
- Performance of CLMS Algorithm for Real-time Application in ANC Systems of Road Noise Input
- Authors
- 문학룡; 손진근
- Issue Date
- 2014
- Publisher
- 대한전기학회
- Keywords
- Acoustic feedback; ANC(active noise control); Correlation LMS(CLMS); FXLMS; Road noise input; Transfer function of second route
- Citation
- 전기학회 논문지 P권, v.63, no.4, pp.260 - 265
- Journal Title
- 전기학회 논문지 P권
- Volume
- 63
- Number
- 4
- Start Page
- 260
- End Page
- 265
- URI
- https://scholarworks.bwise.kr/gachon/handle/2020.sw.gachon/13272
- ISSN
- 1229-800x
- Abstract
- Recently, many active noise control (ANC) systems, which employ the adaptive filter controlling method,have been reported for eliminating unwanted noise. ANC systems based on the filtered-X least mean square (FXLMS)algorithm have a problem with compensating the acoustic feedback of secondary route. It is difficult to apply the realtime, because transfer function of secondary route must be measured by off-line method to solve this problem. In thispaper, we propose the ANC system that applies a correlation LMS(CLMS) algorithm for improving a problem of transferfunction measurement. The proposed algorithm is based on input of road noise. The proposed ANC systems have anadvantage of real-time process without degradation of performance, although there are many calculation compared withFXLMS algorithm.
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