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Relevant bibliographies by topics / Noise Path Model

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Journal articles

Academic literature on the topic 'Noise Path Model'

Author: Grafiati

Published: 6 September 2023

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Journal articles on the topic "Noise Path Model"

1

Yuan, Jing. "Noninvasive Model Independent Noise Control with Adaptive Feedback Cancellation." Advances in Acoustics and Vibration 2008 (March 17, 2008): 1–7. http://dx.doi.org/10.1155/2008/863603.

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An active noise control (ANC) system is model dependent/independent if its controller transfer function is dependent/independent on initial estimates of path models in a sound field. Since parameters of path models in a sound field will change when boundary conditions of the sound field change, model-independent ANC systems (MIANC) are able to tolerate variations of boundary conditions in sound fields and more reliable than model-dependent counterparts. A possible way to implement MIANC systems is online path modeling. Many such systems require invasive probing signals (persistent excitations)

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2

Karttunen, Aki, Mikko Valkama, and Jukka Talvitie. "Influence of Noise-Limited Censored Path Loss on Model Fitting and Path Loss-Based Positioning." Sensors 21, no. 3 (2021): 987. http://dx.doi.org/10.3390/s21030987.

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Positioning is considered one of the key features in various novel industry verticals in future radio systems. Since path loss (PL) or received signal strength-based measurements are widely available in the majority of wireless standards, PL-based positioning has an important role among positioning technologies. Conventionally, PL-based positioning has two phases—fitting a PL model to training data and positioning based on the link distance estimates. However, in both phases, the maximum measurable PL is limited by measurement noise. Such immeasurable samples are called censored PL data and su

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3

Kajikawa, Yoshinobu, and Yasuo Nomura. "An active noise control system without secondary path model." Electronics and Communications in Japan (Part III: Fundamental Electronic Science) 83, no. 10 (2000): 47–55. http://dx.doi.org/10.1002/(sici)1520-6440(200010)83:10<47::aid-ecjc6>3.0.co;2-t.

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4

Liu, Ningning, Yuedong Sun, Yansong Wang, Pei Sun, Wenwu Li, and Hui Guo. "Mechanism of interior noise generation in high-speed vehicle based on anti-noise operational transfer path analysis." Proceedings of the Institution of Mechanical Engineers, Part D: Journal of Automobile Engineering 235, no. 1 (2020): 273–87. http://dx.doi.org/10.1177/0954407020937219.

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Owing to the continuous development of the automobile industry, increasingly stringent performance requirements for noise, vibration, and harshness of automobiles are being presented. Interior noise control in high-speed vehicles has not been adequately addressed, owing to the complex mechanism of noise generation. As simulations performed previously focused on vehicle wind noise and tyre noise cannot adequately predict the effect on passenger ear-side noise, these issues are investigated in this study. Their effects on passengers are investigated using transfer path analysis. An anti-noise op

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5

Zhang, Qi-Zhi, Woon-Seng Gan, and Ya-li Zhou. "A Model Predictive Algorithm for Active Control of Nonlinear Noise Processes." Shock and Vibration 12, no. 3 (2005): 227–37. http://dx.doi.org/10.1155/2005/573067.

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In this paper, an improved nonlinear Active Noise Control (ANC) system is achieved by introducing an appropriate secondary source. For ANC system to be successfully implemented, the nonlinearity of the primary path and time delay of the secondary path must be overcome. A nonlinear Model Predictive Control (MPC) strategy is introduced to deal with the time delay in the secondary path and the nonlinearity in the primary path of the ANC system. An overall online modeling technique is utilized for online secondary path and primary path estimation. The secondary path is estimated using an adaptive

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6

Liu, Qiang, Xuanyi Zhou, Jianxin Zhu, and Xiaoping Gong. "Optimization of Noise Transfer Path Based on the Composite Panel Acoustic and Modal Contribution Analysis." Complexity 2021 (November 20, 2021): 1–15. http://dx.doi.org/10.1155/2021/3059865.

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The noise of a cab directly affects the comfort and labor efficiency of the operators. The optimization of the structure-borne transmission path can obviously reduce the cab noise. The method of panel acoustic contribution analysis (PACA) is used to reduce structure noise. However, most studies only consider the panel acoustic contribution of a single frequency, without considering the contribution of major frequencies synthesis to confirm the optimized panels. In this paper, a novel method is proposed based on composite panel acoustic and modal contribution analysis and noise transfer path op

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7

Zhang, Yu, Dan Zhang, Zhen Han, and Peng Jiang. "A Joint Denoising Learning Model for Weight Update Space–Time Diversity Method." Remote Sensing 14, no. 10 (2022): 2430. http://dx.doi.org/10.3390/rs14102430.

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Space–time diversity (STD) has been widely applied in underwater acoustic (UWA) communication due to its exceptional anti-multipath performance. However, underwater noise can seriously affect the processing results of STD. The conventional filtering algorithms cannot deal with the nonlinear components of underwater noise and may not work well for complex-type signals. This study proposes an improved STD method with a joint noise-reduction learning model for the above issues. We construct a noise-reduction learning model dedicated to complex-type UWA signals in the first stage. Complex-type fea

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8

Pan, F., and J. D. Jones. "Gas Path Sound Transmission in Spherically-Shaped Reciprocating Compressors: Theory and Experiment." Journal of Vibration and Acoustics 121, no. 1 (1999): 8–17. http://dx.doi.org/10.1115/1.2893954.

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Gas pulsations within the refrigerant gas cavity is one of the principal noise propagating paths in reciprocating compressors. This paper provide a physical insight to the relationship between the gas pulsations inside the cavity and noise radiation of reciprocating compressors. The refrigerant gas cavity of the test compressor is modeled as a space between concentric spherical shells and analyzed with modal expansion techniques. Gas pulsations within the cavity are mathematically represented as the forcing terms of the inhomogeneous wave equation in spherical coordinates. The pressure distrib

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9

Ong, Duu Sheng, Ai Hui Tan, Kan Yeep Choo, Keat Hoe Yeoh, and John P. R. David. "Weibull-Fréchet random path length model for avalanche gain and noise in photodiodes." Journal of Physics D: Applied Physics 55, no. 6 (2021): 065105. http://dx.doi.org/10.1088/1361-6463/ac31f0.

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Abstract A four-parameter Weibull-Fréchet (WF) distribution function has been introduced in the random path length (RPL) model for nonlocal modelling of soft-threshold ionisation in semiconductors. The WF function has been demonstrated to be capable of reproducing the realistic probability distribution function (PDF) of electron and hole ionisation path lengths extracted from full band Monte Carlo (FBMC) transport simulations of bulk GaAs. The electron-initiated multiplication in GaAs avalanche photodiodes (APDs) calculated by the WF-RPL model is in excellent agreement with the results from FB

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10

Qian, Kun, Zhichao Hou, Jie Liang, Ruixue Liu, and Dengke Sun. "Interior Sound Quality Prediction of Pure Electric Vehicles Based on Transfer Path Synthesis." Applied Sciences 11, no. 10 (2021): 4385. http://dx.doi.org/10.3390/app11104385.

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The interior sound quality (SQ) of pure electric vehicles (PEVs) has become an important consideration for users purchasing vehicles. At present, it is insufficient to take the sound pressure level as the interior acoustics design index of PEVs. Transfer path analysis (TPA) and transfer path synthesis (TPS) that take the SQ of interior noise as the improvement target remains in the preliminary exploration stage. In this paper, objective psychoacoustic parameters of SQ were taken as evaluation indexes of interior PEV noise. A virtual interior SQ synthesis model was designed on the basis of TPA

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