Multi-channel normalized FxLMS algorithm for active noise control
نویسندگان
چکیده
منابع مشابه
Improving Computational Load of Fxlms Algorithm in Multi-channel Active Noise Control by Using a Modified Structure
This paper concerns Active Noise Control (ANC) of feed-forward multi-channel Filtered-x Least Mean Square (FxLMS) algorithm. The FxLMS algorithm is a preferred algorithm as a controller filter in ANC systems. In spite of its popularity, computational load in multichannel systems is a main drawback. Among the existing solutions to simplify the computations, one is based on the using only one ref...
متن کاملApplication of the Fxlms Algorithm in Active Noise Reduction
Application of the filtered-X LMS algorithm to adaptive/active noise cancelling in headsets or hearing protectors has been investigated. The speed of convergence and amount of obtainable noise reduction was investigated for different step-size parameters and FIR filter lengths. Simple models for the headphone transfer function and the sound transmission through the ear cups are applied. We have...
متن کاملFxLMS-based Active Noise Control: A Quick Review
This paper represents a short review on active noise control (ANC) with the emphasis on ANC systems implemented by using FxLMS adaptation algorithm. The physical mechanism behind active noise control, based on which local silence zones can be created is detailed. Basic configurations for realization of ANC systems are then introduced. It is shown that FxLMS algorithm has been widely used in dif...
متن کاملMulti-channel Kalman filters for active noise control.
By formulating the feed-forward broadband active noise control problem as a state estimation problem it is possible to achieve a faster rate of convergence than the filtered reference least mean squares algorithm and possibly also a better tracking performance. A multiple input/multiple output Kalman algorithm is derived to perform this state estimation. To make the algorithm more suitable for ...
متن کاملMulti-channel Active Control of Axial Cooling Fan Noise
A multi-channel active control system has been applied to the reduction of free-field tonal noise from a small axial cooling fan, typical of those used in office equipment and other technology. The experimental apparatus consists of an aluminum enclosure which houses the fan, an infrared detector-emitter pair which serves as a reference sensor, loudspeakers, microphones, and appropriate filters...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: The Journal of the Acoustical Society of Korea
سال: 2016
ISSN: 1225-4428
DOI: 10.7776/ask.2016.35.4.280