Naslov
An Adaptive Method for Avoiding Overloading of Secondary Sources in Active Noise Control

Autori
Dadić, Martin

Vrsta, podvrsta i kategorija rada
Radovi u zbornicima skupova, cjeloviti rad (in extenso), znanstveni

Izvornik
Annals of DAAAM for 2000 & Proceedings of the 11th International DAAAM Symposium / Katalinic, Branko - Beč : DAAAM International Vienna, 2000, 109-110

Skup
11th International DAAAM Symposium

Mjesto i datum
Opatija, Hrvatska, 19.10.2000. - 21.10.2000

Vrsta sudjelovanja
Predavanje

Vrsta recenzije
Međunarodna recenzija

Ključne riječi
active noise control; nonlinear distortion; secondary sources overloading; LMS based algorithms

Sažetak
In active noise control (ANC) systems, the direct application of the least-mean-squares (LMS) based algorithms sometimes leads to the problem of nonlinear distortion caused by overloading the secondary sources (including overloading of amplifiers and overloading of actuators). This problem was solved in the past by modifying the cost function to include constraints on control effort with application of “leaky” LMS algorithm. In this paper an alternative and more efficient adaptive compressing of output signal (ACOS) method was proposed, where output signal from signal processor is attenuated by an adaptive adjusted factor, and LMS weights updating is carried by a modified error signal.

Izvorni jezik
Engleski

Znanstvena područja
Elektrotehnika

POVEZANOST RADA