THE REDUCTION EFFECT OF CONSTRUCTION MACHINERY NOISE BY FEEDFORWARD TYPE ACTIVE NOISE CONTROL

نویسندگان
چکیده

برای دانلود رایگان متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید

اگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید

منابع مشابه

Reduction of broadband noise in vehicles by means of active feedforward control

Broadband noise in a vehicle’s interior is an important issue because of its negative impact on the passengers’ comfort and wellbeing. The perception of this broadband noise can increase due to the use of new, less noisy drive concepts and the accompanying loss of masking noise components. This contribution focuses on the reduction of the transmission of external broadband disturbances through ...

متن کامل

The Convergence Analysis of Feedforward Active Noise Control System

Most active noise control (ANC) systems [1-3] are based on feedforward structure with adaptive filters, which are updated with the filtered-x LMS algorithm [4, 5] or the multiple error filtered-x (MEFX) LMS algorithm [6, 7]. The convergence characteristics of these algorithms have been studied mostly in the time domain, and it was found that the convergence characteristics were subject to eigen...

متن کامل

A modular active bearing for noise reduction of rotating machinery

Traditionally, active control of structural radiators has approached the problem through integrating sensors and actuators on or into the structure. In such an approach, the goal is to modify the systems response to disturbance, rather than influence the disturbance path to the radiating structure. Many practical issues exist, which ultimately limit the effectiveness of such an approach. A gene...

متن کامل

A study of the position of the reference microphone of active noise control of feedforward type for MRI noise

Magnetic resonance imaging (MRI) devices generate loud acoustical noise during operation. The sound pressure level of the MRI noise depends on the imaging sequence, but it is generally 100 dB or more. Our current study is aimed at the improvement of the acoustical environment for the MRI patient by means of an active noise control system. We propose using a feedforward system because acoustical...

متن کامل

Combined Active Noise Control and Noise Reduction in Hearing Aids

This paper presents a combined active noise control and noise reduction scheme for hearing aids to tackle secondary path effects and effects of signal leakage through the fitting. While such leakage contributions and the secondary accoustic path from the reciever to the tympanic membrane are usually not taken into account in standard noise reduction systems, they appear to have a non-negligible...

متن کامل

ذخیره 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: Journal of Environmental Engineering (Transactions of AIJ)

سال: 2017

ISSN: 1348-0685,1881-817X

DOI: 10.3130/aije.82.97