Fuzzy impulsive control of high order sigma-delta modulators

Ling, Wing-Kuen and Ho, Yuk-Fan and Reiss, Joshua (2005) Fuzzy impulsive control of high order sigma-delta modulators. In: 118th Convention of Audio Engineering Society, May 2005, Barcelona.

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Abstract

In this paper, high order interpolative sigma delta modulators (SDMs) in audio applications are considered. For these SDMs, limit cycle and divergent behaviors may be observed, especially when the inputs are overloaded. A novel fuzzy impulsive control strategy is proposed. The control law is to minimize the difference between the uncontrolled trajectory and the control trajectory, suppress the occurrence of limit cycles, and maintain the local stability of the SDMs. Examples of high order lowpass interpolative SDMs are given to illustrate the effectiveness of the proposed control strategy.

Item Type:Conference or Workshop Item (Paper)
Additional Information:In this paper, high order interpolative sigma delta modulators (SDMs) in audio applications are considered. For these SDMs, limit cycle and divergent behaviors may be observed, especially when the inputs are overloaded. A novel fuzzy impulsive control strategy is proposed. The control law is to minimize the difference between the uncontrolled trajectory and the control trajectory, suppress the occurrence of limit cycles, and maintain the local stability of the SDMs. Examples of high order lowpass interpolative SDMs are given to illustrate the effectiveness of the proposed control strategy.
Keywords:fuzzy control, impulsive control, sigma delta modulator, high order
Subjects:H Engineering > H660 Control Systems
Divisions:College of Science > School of Engineering
ID Code:3096
Deposited By:INVALID USER
Deposited On:06 Aug 2010 07:28
Last Modified:13 Mar 2013 08:43

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