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Updated: Jan 25, 2026

Control of Eating Behavior Using a Novel Feedback System

Control of Eating Behavior Using a Novel Feedback System

Published on: May 8, 2018

Robust Wiener controller design with acoustic feedback for active noise control systems.

Fengyan An¹, Yin Cao², Ming Wu³

¹School of Mechanical and Automotive Engineering, Qingdao University of Technology, Qingdao, Shandong 266520, China.

The Journal of the Acoustical Society of America

|May 4, 2019

Summary

This summary is machine-generated.

This study introduces a modified Wiener controller to improve the stability of active noise control systems facing feedback path variations. The new method enhances robust stability while maintaining good performance in ventilation systems.

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Area of Science:

Acoustics
Control Systems Engineering
Signal Processing

Background:

Active noise control (ANC) systems can become unstable due to variations in the acoustic feedback path.
Traditional feedback neutralization methods may not guarantee stability under dynamic feedback conditions.

Purpose of the Study:

To introduce a modified Wiener controller for enhancing robust stability in ANC systems.
To ensure stable operation of ANC systems even with significant feedback path variations.

Main Methods:

A modified Wiener controller was designed using frequency-weighted penalties.
Penalties were iteratively adjusted based on the Nyquist stability criterion.
A fixed feedback neutralization filter was employed.

Main Results:

The proposed controller demonstrated enhanced robust stability.
Experimental results in a ventilation duct system confirmed the effectiveness.
Good noise control performance was maintained alongside improved stability.

Conclusions:

The modified Wiener controller offers a robust solution for ANC systems with varying feedback paths.
This approach effectively balances stability and performance in practical applications.
The method is validated for use in systems like ventilation ducts.