Comprehensive Review of Virtual Sensing Algorithms for Enhancing Active Noise Control Systems
Author(s):Mamadou Diallo1, Souleymane Camara2, and Mariama Kaba3
Affiliation: 1Department of Electrical Engineering, University of Conakry, Conakry, Guinea 2Department of Computer Science, University of Conakry, Conakry, Guinea 3Department of Civil Engineering, University of Conakry, Conakry, Guinea
Page No: 23-32
Volume issue & Publishing Year: Volume 2 Issue 1,Jan-2025
Journal: International Journal of Advanced Engineering Application (IJAEA)
ISSN NO: 3048-6807
DOI: https://doi.org/10.5281/zenodo.17672596
Abstract:
Traditional local active noise control (ANC) systems aim to minimize the measured acoustic pressure in order to create a zone of quiet at the physical error sensor location. However, the effectiveness of these systems is often limited by the relatively small size of the quiet zone, which requires the physical error sensor to be placed precisely at the location where noise reduction is desired. This positioning can be inconvenient and impractical in many applications, particularly when the sensor cannot be placed directly in the desired zone of attenuation. To address these limitations, virtual sensing algorithms have been developed as an innovative solution for active noise control. Virtual sensing algorithms leverage the physical error signal, the control signal, and the system's knowledge to estimate the error signal at a remote location, referred to as the virtual location. Rather than focusing on minimizing the error at the physical sensor location, the system is designed to minimize the estimated error at the virtual location, thus generating a more effective and flexible zone of quiet at the target location, even if it is not directly accessible for sensor placement. This paper provides a comprehensive review of various virtual sensing algorithms that have been proposed for active noise control. The performance of these algorithms is evaluated through both numerical simulations and real-world experimental results. In addition to comparing the effectiveness of these algorithms, the challenges and opportunities associated with their implementation in practical ANC systems are also discussed, highlighting the potential benefits and limitations of virtual sensing in achieving broader and more dynamic noise attenuation zones
Keywords: Virtual sensing; Active noise control; Active headrest; Acoustic noise reduction; Error signal estimation; Zone of quiet; Noise attenuation; Remote sensor; Control signal; Noise cancellation; ANC algorithms; Sensor placement optimization; Acoustic feedback; Virtual location; Noise control systems1.
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