Active noise control using robust feedback techniques

O'Brien, M.; Pratt, Philip J.

doi:10.1109/icassp.2001.940341

Cited by 5 publications

(3 citation statements)

References 11 publications

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“…One of the problems with the feedback method is that due to the right half plane (RHP) zeros of the acoustic plant, the sound level decreases at some frequencies but increases at some other frequencies. This phenomenon is called the “waterbed effect.” 1,2 Unfortunately, the control bandwidth is limited. As a result, reducing a broadband noise is difficult.…”

Section: Introductionmentioning

confidence: 99%

Active control of vehicle’s interior sound field by using multichannel H_∞ robust controller

Ghanati

Azadi

2019

Proceedings of the Institution of Mechanical Engineers, Part D:

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The sound level inside an automobile cabin plays a major role in the passengers’ comfort. Active noise control has been widely used to reduce the sound level inside the car cabin. This article presents a design of an active and robust sound control system that can still be efficient despite the changes inside the passengers’ compartment caused by the movement of the occupants. Initially, the coupled acoustic structural analysis is done on a simplified model of an automobile cabin by using finite element and modal coupling methods. Then, the uncertainty of the sound field inside the car, due to the presence of the occupants and the displacement of their heads, is investigated. A multi input multi output robust feedback control strategy, using the H∞ method and considering the unstructured uncertainty of the acoustic structural system, is proposed to reduce the sound pressure level at the ears of all the occupants. In order to achieve performance targets in a broad bandwidth and to reduce the waterbed effect, an optimization is performed on the weight function coefficients. The results show that in the frequency range of 0–334 Hz, the controller has an acceptable performance which is robust to changes in the interior sound field.

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Section: Introductionmentioning

confidence: 99%

Active control of vehicle’s interior sound field by using multichannel H_∞ robust controller

Ghanati

Azadi

2019

Proceedings of the Institution of Mechanical Engineers, Part D:

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“…Among the feedback control strategies, LQG controller can not only be tuned to penalize each modes, it also overcomes the need to measure the entire state by estimating the state using a Kalman filter (33]; passivity-based controller can guarantee the stability after passification, 1/,00 controller can both shape the closed-loop bode plot for nominal plant, and also guarantee the stability if the uncertainty bound is considered in 1/, 00 design (34]. Furthermore, LQG and 1/,00 controllers design can be easily obtained with MATLAB software [35,36], so these three kinds of control methods are used in this thesis.…”

Section: Feedback Methodsmentioning

confidence: 99%

“…A finite dimensional acoustic system dynamics will always exhibit right half plane (RHP) zeros. The plant with RHP zeros exhibits the following adverse difficulties [34]:…”

Section: -L 00 Controller Design For Nominal Performancementioning

confidence: 99%

Active feedback control of acoustic noise in 3 - D enclosures

Liu¹

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Active noise control in a duct using output feedback robust control techniques

Yucelen

Sadahalli

Pourboghrat

2010

Proceedings of the 2010 American Control Conference

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Active noise control using robust feedback techniques

Cited by 5 publications

References 11 publications

Active control of vehicle’s interior sound field by using multichannel H_∞ robust controller

Active control of vehicle’s interior sound field by using multichannel H_∞ robust controller

Active feedback control of acoustic noise in 3 - D enclosures

Active noise control in a duct using output feedback robust control techniques

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Active noise control using robust feedback techniques

Cited by 5 publications

References 11 publications

Active control of vehicle’s interior sound field by using multichannel H∞ robust controller

Active control of vehicle’s interior sound field by using multichannel H∞ robust controller

Active feedback control of acoustic noise in 3 - D enclosures

Active noise control in a duct using output feedback robust control techniques

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Product

Resources

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Active control of vehicle’s interior sound field by using multichannel H_∞ robust controller

Active control of vehicle’s interior sound field by using multichannel H_∞ robust controller