Title :
A new on-line modelling technique for an active periodic noise control system
Author :
Barbosa, Afonso ; Kuo, Sen M.
Author_Institution :
Dept. of Electr. Eng., Northern Illinois Univ., DeKalb, IL, USA
Abstract :
Presents the mathematical derivation of a novel on-line modelling technique for an active periodic noise control (APNC) system using a internally generated impulse train with the same fundamental frequency as the noise to be canceled as reference input. The mathematical derivation of this on-line modelling technique is done based on the equivalent block diagram of the system with the use of the steepest descent concept. Simulations show a considerable improvement in the performance and stability of the APNC system with the novel on-line modelling algorithm over the APNC system without any compensation. They also show that the performance of the APNC system with the on-line modelling algorithm is close to the performance of the ideal system, therefore indicating that this technique is a promising one
Keywords :
acoustic signal processing; adaptive filters; noise abatement; APNC system; acoustic signal processing; active periodic noise control system; adaptive filters; equivalent block diagram; internally generated impulse train; on-line modelling technique; stability; steepest descent concept; Acoustic noise; Active noise reduction; Control system synthesis; Equations; Error correction; Finite impulse response filter; Least squares approximation; Noise cancellation; Noise generators; Transfer functions;
Conference_Titel :
Circuits and Systems, 1992. ISCAS '92. Proceedings., 1992 IEEE International Symposium on
Conference_Location :
San Diego, CA
Print_ISBN :
0-7803-0593-0
DOI :
10.1109/ISCAS.1992.230214
