Title :
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
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;
Conference_Titel :
Engineering in Medicine and Biology Society, 2009. EMBC 2009. Annual International Conference of the IEEE
Conference_Location :
Minneapolis, MN
Print_ISBN :
978-1-4244-3296-7
Electronic_ISBN :
1557-170X
DOI :
10.1109/IEMBS.2009.5333780
