Multi-channel real time active noise control system for infant incubators

Author

Liu, Lichuan ; Gujjula, Shruthi ; Kuo, Sen M.

Author_Institution

Dept. of Electr. Eng., Northern Illinois Univ., DeKalb, IL, USA

fYear

2009

fDate

3-6 Sept. 2009

Firstpage

935

Lastpage

938

Abstract

Excessive noise levels inside infants incubators in neonatal intensive care units (NICU) contribute to number of harmful effects on the infant´s health. This paper develops and implements practical active noise control (ANC) systems for the infant incubators. The filtered-X least mean square (FXLMS) algorithm is used to cancel the noise inside the incubator. The multi-channel and pseudo multi-channel ANC systems are proposed to enhance the noise cancellation performance in terms of cancellation gain and quiet zone. An experimental setup based on real Giraffe incubator from GE Healthcare is used for real-time experiments. The results show that the ANC system can dramatically reduce the noise and cost effective.

Keywords

active noise control; bioacoustics; least mean squares methods; obstetrics; patient care; GE Healthcare; Giraffe incubator; excessive noise levels; filtered-X least mean square algorithm; infant incubators; multichannel real time active noise control system; neonatal intensive care units; noise cancellation performance; Algorithms; Computer-Aided Design; Equipment Design; Equipment Failure Analysis; Feedback; Incubators, Infant; Noise; Reproducibility of Results; Sensitivity and Specificity; Signal Processing, Computer-Assisted; Sound Spectrography;

fLanguage

English

Publisher

ieee

Conference_Titel

Engineering in Medicine and Biology Society, 2009. EMBC 2009. Annual International Conference of the IEEE

Conference_Location

Minneapolis, MN

ISSN

1557-170X

Print_ISBN

978-1-4244-3296-7

Electronic_ISBN

1557-170X

Type

conf

DOI

10.1109/IEMBS.2009.5333780

Filename

5333780