TY - GEN
T1 - A hybrid active noise cancelling with secondary path modeling
AU - Lopez-Gaudana, Edgar
AU - Betancourt, Pablo
AU - Cruz, Enrique
AU - Nakano-Miyatake, Mariko
AU - Perez-Meana, Hector
PY - 2008
Y1 - 2008
N2 - This paper presents a hybrid active noise cancelling (ANC) system, to overcome the acoustic feedback present in most feedforward ANC system, together with an on line secondary path estimation scheme. The ANC system provides a suitable solution to two important problems present in most ANC systems. The acoustic feedback is reduced using two FIR adaptive filters with feedforward and feedback configurations, respectively; while the secondary path modeling is carried out using a modification of the on line estimation method proposed by Akhtar. Computer simulation results show that the combination of the feedback and feedforward stages provides a fairly good acoustic feedback cancellation, while the secondary path estimation method performs fairly well, providing both a fairly good noise cancelation performance.
AB - This paper presents a hybrid active noise cancelling (ANC) system, to overcome the acoustic feedback present in most feedforward ANC system, together with an on line secondary path estimation scheme. The ANC system provides a suitable solution to two important problems present in most ANC systems. The acoustic feedback is reduced using two FIR adaptive filters with feedforward and feedback configurations, respectively; while the secondary path modeling is carried out using a modification of the on line estimation method proposed by Akhtar. Computer simulation results show that the combination of the feedback and feedforward stages provides a fairly good acoustic feedback cancellation, while the secondary path estimation method performs fairly well, providing both a fairly good noise cancelation performance.
UR - http://www.scopus.com/inward/record.url?scp=54249146583&partnerID=8YFLogxK
U2 - 10.1109/MWSCAS.2008.4616790
DO - 10.1109/MWSCAS.2008.4616790
M3 - Contribución a la conferencia
AN - SCOPUS:54249146583
SN - 9781424421671
T3 - Midwest Symposium on Circuits and Systems
SP - 277
EP - 280
BT - 2008 IEEE International 51st Midwest Symposium on Circuits and Systems, MWSCAS
T2 - 2008 IEEE International 51st Midwest Symposium on Circuits and Systems, MWSCAS
Y2 - 10 August 2008 through 13 August 2008
ER -