THE IMPLEMENTATION OF ACTIVE NOISE CONTROL SYSTEMS USING DIGITAL SIGNAL PROCESSING TECHNIQUES
R.R. Leitch, Mohammad Osman Tokhi · 2024
Imam: CI The development of active noise control (ANC) systems has tended to focus on improving the performance of practical systans by developing complex geometrical structures of multiple-detector and/or multiple-loudspeaker configurations.Only limited success with these schemes has been reported [l].However, recent advances in semiconductor technology have produced extremely fast, dedicated digital signal processing devices capable of implementing, in real-time, controllers of signifith complexity.The opportunity now exists to reduce the geometric complexity whilst increasing controller complexity, resulting in a number of significant advantages.This approach requires a proper analysis of ANC systems from a control engineering perspective, and a clear classification of the characteristics of the sources [1,2] leading to a suitable design methodology.This coupled with the capabilities provided by the current microprocessor technology provides the opportunity to overcome the problems associated with previous attempts and to develop practical MIC systems.This paper presents a methodology for the design of MIC systems with compact broadband sources, in anon dispersive (linear) propagation medium,