Title :
Overshoot reduction in multi-tone narrowband ANC systems
Author :
Kahaei, M.H. ; Nasiri, A.R. ; Taringoo, F. ; Poshtan, J.
Author_Institution :
Dept. of Electr. Eng., Iran Univ. of Sci. & Technol., Tehran, Iran
Abstract :
Overshoot reduction of narrowband multi-tone ANC systems is investigated. The second-order perturbation method is proposed to estimate the poles of ANC transfer function. The phase differences of the estimated poles and the zeros corresponding to the input signal are then used in a parallel ANC system to compensate the secondary-path phases. Simulation results clearly show the significant reduction of overshoot phenomenon for multi-tone input signals.
Keywords :
acoustic noise; acoustic signal processing; active noise control; perturbation techniques; poles and zeros; signal denoising; transfer functions; ANC transfer function; active noise control; multitone narrowband ANC systems; overshoot reduction; second-order perturbation method; secondary-path phases; Acoustic noise; Adaptive filters; Ducts; Narrowband; Noise cancellation; Perturbation methods; Phase estimation; Poles and zeros; Power harmonic filters; Transfer functions;
Conference_Titel :
Signal Processing and Information Technology, 2003. ISSPIT 2003. Proceedings of the 3rd IEEE International Symposium on
Print_ISBN :
0-7803-8292-7
DOI :
10.1109/ISSPIT.2003.1341240
