Related Experiment Video
Updated: Jul 6, 2026

Driving Under the Influence: How Music Listening Affects Driving Behaviors
Published on: March 27, 2019
The performance of active control of random noise in cars
Janatul I Mohammad1, Stephen J Elliott, Andy Mackay
1Institute of Sound and Vibration Research, University of Southampton, Southampton SO17 1BJ, United Kingdom. janatul@utem.edu.my
Abstract:
This letter investigates the effectiveness of various configurations of reference sensors for feedforward active control systems in vehicles using unconstrained frequency domain optimization. The results from a model problem are based on a fully coupled analysis between the vibration of a car panel and an enclosed acoustic field. These suggest that with correct locations, only a small number of microphones or accelerometers are needed to give good overall performance, despite many uncorrelated primary disturbances being present. Similar results are predicted from road test data.
Related Concept Videos
Feedback control systems
Linear feedback systems are theoretical models that simplify analysis and design. These systems operate under the principle that their output is directly proportional to their input within certain ranges. For instance, an amplifier in a control system behaves linearly as long as the input signal remains within a specific range. However, most physical systems exhibit inherent nonlinearity...
Control Systems
At the heart...
PD Controller: Design
Designing a continuous-data controller requires selecting and linking components like adders and integrators, which are fundamental in Proportional,...
Control Systems: Applications
In modern vehicles, control systems manage various functions to enhance performance and safety. The steering wheel and accelerator are primary inputs in a car's control system. The direction...
Open and closed-loop control systems
An open-loop control system operates without feedback from the output. It consists of two primary elements: the controller and the controlled process. The controller receives an input signal and...
Controller Configurations
Control-system compensation involves various configurations, most commonly series or cascade compensation, in which the controller aligns...
