Results 11 to 20 of about 13,744,820 (237)
Active Noise Control for Aircraft Cabin Seats
Applied Sciences, 2022 In turboprop aircraft, the low-frequency noise field created by the propellers is the major contributor to the interior vibro-acoustic field, which determines a passenger’s discomfort.
Ignazio Dimino +4 more
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IEEE Access, 2023 Today, the majority of the commercial electrified vehicles use Interior Permanent Magnet Motors (IPMSMs) for propulsion. An IPMSM can deliver high starting torque and high efficiency in the low- and medium-speed operation, which makes it attractive for ...
Ashish Kumar Sahu +2 more
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A Method for Determining the Optimal Location of a Distributed Sensor/Actuator
Shock and Vibration, 1994 The optimal location problem of distributed sensor/actuator for observation and control of a flexible structure is investigated. Using a property of controllability and observability grammian matrices, this approach employs a nonlinear optimization ...
Byeongsik Ko +2 more
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Directional active noise control for drone noise reduction [PDF]
JASA Express LettersDrones have become essential tools for applications ranging from aerial surveillance to last-mile delivery, raising concerns about noise pollution in populated environments.
Hanwen Bi +3 more
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Noise control with Kalman filter for active headrest
Xibei Gongye Daxue Xuebao, 2021 A control strategy with Kalman filter (KF) is proposed for active noise control of virtual error signal for active headset. Comparing with the gradient based algorithm, KF algorithm has faster convergence speed and better convergence performance. In this
WANG Lei, CHEN Kean, XU Jian, QI Wang
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FXLMS with Multiple Error Switching for Active Noise-Cancelling Casings
Archives of Acoustics, 2019 Passive noise reduction methods require thick and heavy barriers to be effective for low frequencies and those clasical ones are thus not suitable for reduction of low frequency noise generated by devices.
Krzysztof MAZUR +4 more
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Active Noise Attenuation Using Lqg/ltr Control
Eletrônica de Potência, 2004 This paper presents a control system design for active noise cancellation using “Linear Quadratic Gaussian / Loop Transfer Recovery” (LQG/LTR). An implementation by an equipment like a headset is proposed, where both active and passive attenuation ...
José Paulo F. Garcia +3 more
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Convex combination-based active impulse noise control system
Journal of Low Frequency Noise, Vibration and Active Control, 2020 Active noise control shows a good performance on the suppression of the low-frequency noise and hence it is widely applied. However, the traditional active noise control systems are unsatisfactory in controlling impulse noise in practical situations.
Ning Yu +4 more
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Phasor Representation for Narrowband Active Noise Control Systems
EURASIP Journal on Audio, Speech, and Music Processing, 2008 The phasor representation is introduced to identify the characteristic of the active noise control (ANC) systems. The conventional representation, transfer function, cannot explain the fact that the performance will be degraded at some frequency for the ...
Fu-Kun Chen +2 more
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Feedforward Control of a Light-Weight Device Casing for Active Noise Reduction
Archives of Acoustics, 2016 It is possible to enhance acoustic isolation of the device from the environment by appropriately controlling vibration of a device casing. Sound insulation efficiency of this technique for a rigid casing was confirmed by the authors in previous ...
Stanislaw WRONA, Marek PAWELCZYK
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