Relevant bibliographies by topics / Nearfield acoustical holography

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  1. Journal articles
  2. Dissertations / Theses
  3. Books
  4. Book chapters
  5. Conference papers

Academic literature on the topic 'Nearfield acoustical holography'

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Published: 4 June 2021
Last updated: 1 February 2022

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Journal articles on the topic "Nearfield acoustical holography"

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Williams, Earl G. "Patch nearfield acoustical holography." Journal of the Acoustical Society of America 112, no. 5 (November 2002): 2352. http://dx.doi.org/10.1121/1.4779525.

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Wu, Sean F. "Transient nearfield acoustical holography." Journal of the Acoustical Society of America 136, no. 4 (October 2014): 2171. http://dx.doi.org/10.1121/1.4899855.

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Cho, Yong Thung, J. Stuart Bolton, Yong‐Joe Kim, and Hyu‐Sang Kwon. "Two‐microphone nearfield acoustical holography." Journal of the Acoustical Society of America 118, no. 3 (September 2005): 1917. http://dx.doi.org/10.1121/1.4780380.

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Williams, Earl G., and Karl B. Washburn. "Broadband generalized nearfield acoustical holography." Journal of the Acoustical Society of America 80, S1 (December 1986): S94—S95. http://dx.doi.org/10.1121/1.2024057.

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Williams, Earl G., and J. Adin Mann. "Fourier Acoustics: Sound Radiation and Nearfield Acoustical Holography." Journal of the Acoustical Society of America 108, no. 4 (October 2000): 1373. http://dx.doi.org/10.1121/1.1289662.

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Wu, Sean. "Noise diagnosis using nearfield acoustical holography." Journal of the Acoustical Society of America 122, no. 5 (2007): 3027. http://dx.doi.org/10.1121/1.2942826.

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Kwon, Hyuck Sang. "Multi-Reference Scan-Based Nearfield Acoustical Holography." Key Engineering Materials 321-323 (October 2006): 1249–52. http://dx.doi.org/10.4028/www.scientific.net/kem.321-323.1249.

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Multi-reference, scan-based Nearfield Acoustical Holography (NAH) is a useful measurement tool that can be applied when an insufficient number of microphones are available to make measurements on a complete hologram surface simultaneously. The scan-based procedure can be used to construct a complete hologram by joining together sub-holograms captured using a relatively small, roving scan array and a fixed reference array. For the procedure to be successful, the source levels must remain stationary for the time taken to record the complete hologram: that is unlikely to be the case in practice, however. Usually, the reference signal levels measured during each scan differ from each other with the result that spatial noise is added to the hologram. A non-stationarity compensation procedure that is based on the acoustical transfer functions between the sources and both the reference and scanning, field microphones are invariable is introduced. Numerical and experimental results show well the availability of the introduced procedures to suppress the spatially distributed noise and to get better sound fields partially separated.
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Kim, Yong‐joe, Moohyung Lee, and J. Stuart Bolton. "Multi‐reference methods for nearfield acoustical holography." Journal of the Acoustical Society of America 129, no. 4 (April 2011): 2491. http://dx.doi.org/10.1121/1.3588219.

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Maynard, J. D. "Nearfield acoustical holography and nonlinear sound fields." Journal of the Acoustical Society of America 121, no. 5 (May 2007): 3069. http://dx.doi.org/10.1121/1.4781862.

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Williams, Earl G. "Current advances in cylindrical nearfield acoustical holography." Journal of the Acoustical Society of America 84, S1 (November 1988): S171—S172. http://dx.doi.org/10.1121/1.2025966.

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Dissertations / Theses on the topic "Nearfield acoustical holography"

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Woolston, Scott Richard. "Development of Methods to Propagate Energy Density and Predict Farfield Directivity Using Nearfield Acoustic Holography." BYU ScholarsArchive, 2009. https://scholarsarchive.byu.edu/etd/1726.

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Acoustical-based imaging systems have found merit in determining the behavior of vibrating structures. This thesis focuses on the continued development of the nearfield acoustic holography (NAH) approach. Conventional NAH consists of first measuring the pressure field on a two-dimensional conformal surface and then propagating this data back to the vibrating structure to obtain information about the source, such as the normal velocity distribution. Recent work has been done which incorporates particle velocity information into the traditional NAH measurements to reduce the number of measurements required. This advancement has made NAH a more affordable tool for acoustical imaging and sound field characterization. It is proposed that the inclusion of velocity information into traditional NAH can further increase its usefulness. By propagating the velocity and pressure values independently and recombining them on the reconstruction surface, the pressure field and energy density fields can be predicted at any point in the sound field. It is also proposed that the same NAH measurement can be used to predict farfield directivity. The inclusion of velocity values into the NAH technique also provides a means for predicting energy density (ED) anywhere within the acoustic field. These two developments would allow a single NAH measurement to provide much more information about an acoustic source and its radiated sound field. Experimental testing shows that NAH is successful at predicting the shape of the resulting ED field and directivity pattern with some error in amplitude. The best performance of the technique is with a planer source resulting in an average amplitude error of 18.5% over the entire field.
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Harris, Michael C. "Development of an Energy-Based Nearfield Acoustic Holography System." Diss., CLICK HERE for online access, 2005. http://contentdm.lib.byu.edu/ETD/image/etd835.pdf.

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Filyayev, Anton A. "Noise Source Evaluation of Misalignment and Elastomeric Couplings using Nearfield Acoustic Holography." University of Cincinnati / OhioLINK, 2017. http://rave.ohiolink.edu/etdc/view?acc_num=ucin1535373234815763.

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Escuder, Silla Eva María. "Estudio del comportamiento acústico de estructuras multicapa mediante nah." Doctoral thesis, Universitat Politècnica de València, 2008. http://hdl.handle.net/10251/1860.

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El objeto de esta tesis se centra el estudio del comportamiento acústico de estructuras multicapa, utilizando como herramienta, entre otras, la denominada "Holografía acústica de campo cercano" (NAH, Nearfield Acoustical Holography). Las conclusiones obtenidas y las herramientas desarrolladas en este estudio tienen implicaciones en dos ámbitos, el aislamiento acústico con particiones ligeras multicapa, y la optimización de la radiación de sistemas electroacústicos basados en la vibración de un panel provocada por un elemento excitador de tipo dinámico (caso de los altavoces planos). El proceso para conseguir predicciones acertadas del comportamiento de estructuras multicapa, tanto desde el punto de vista de la aplicación acústica de la edificación, como el electroacústico (mejora de prestaciones de altavoces), debe partir, necesariamente de un conocimiento preciso de las características acústicas de los componentes, es decir, cada una de las capas. Este estudio constituye la primera fase de la investigación y del trabajo. La validación de las teorías sobre el aislamiento acústico lleva contigo el ensayo de diferentes materiales y configuraciones. El objeto es aumentar al máximo el índice de aislamiento de una cierta configuración, intentado disminuir en lo posible los costes. El estudio del comportamiento acústico de distintas configuraciones suele realizarse en cámara de transmisión. Los resultados de las medidas en estas condiciones no tienen por qué coincidir con los obtenidos con medidas "in situ", ya que las condiciones de montaje son hasta cierto punto incontrolables. Existen diversos trabajos donde se desarrollan los diferentes modelos, teorías y técnicas de medición con este fin, desde modelos y teorías para caracterizar materiales absorbentes hasta métodos de caracterización de materiales absorbentes medidos en el tubo de Kundt. También existen medidas de una determinado variable acústica, permiten obtener los parámetros de entrada necesarios para los progr
Escuder Silla, EM. (2005). Estudio del comportamiento acústico de estructuras multicapa mediante nah [Tesis doctoral no publicada]. Universitat Politècnica de València. https://doi.org/10.4995/Thesis/10251/1860
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Woolston, Scott R. "Development of methods to propagate energy density and predict farfield directivity using nearfield acoustic holography /." Diss., CLICK HERE for online access, 2009. http://contentdm.lib.byu.edu/ETD/image/etd3016.pdf.

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Colinas, Nilton Gilber. "Caracterização vibroacustica usando holografia acustica de campo proximo." [s.n.], 1999. http://repositorio.unicamp.br/jspui/handle/REPOSIP/265385.

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Orientador: Jose Maria Campos dos Santos
Dissertação (mestrado) - Universidade Estadual de Campinas, Faculdade de Engenharia Mecanica
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Resumo: Neste trabalho procurou-se explorar a técnica de Holografia Acústica de Campo Próximo (Nearfield Acoustic Holography - NAB), que tem se mostrado como uma forma de análise para problemas vibroacústicos. A holografia é um processo que permite determinar as características de um campo de ondas acústicas usando a Transformada de Fourier Discreta (Discrete Fourier Transform - DFT), a partir de uma grade de pontos de medições regularmente espaçados obtidos em um ambiente acústico onde a função de Green é conhecida. O presente trabalho apresenta uma breve revisão dos princípios desta técnica com uma aplicação na reconstrução de propriedades vibroacústicas de estruturas. O campo de pressão, campo de velocidade das partículas e intensidade acústica gerados por um elemento estrutural vibrante foram as grandezas reconstruídas através da técnica NAH em diferentes posições do espaço. A fim de minimizar os problemas de leakage oriundos do processamento dos sinais, a Série de Fourier Discreta Regressiva (Regressive Discrete Fourier Series - RDFS) foi utilizada como alternativa às técnicas de janelamento do sinal. Resultados obtidos para uma estrutura do tipo placa são analisados, validados e comparados com previsões teóricas
Abstract: In this work, the Nearfield Acoustic Holography technique - NAH was explored as an way to analyze vibroacoustic problems. Holography is a process that allows to determine acoustic fields characteristics using a Discrete Fourier Transform - DFT, from a regular grid of measurements obtained in an acoustic environment for which the Green' s function is known. This work presents a brief principle's review of this technique with an application on the reconstruction of the vibroacoustic properties of structures. The pressure field, particle velocity field and acoustical intensity generated by a vibrating structural element were reconstructed through the NAH technique in different spatial positions. ln order to minimize spatial leakage problems from signal processing a Regressive Discrete Fourier Series ¿ RDFS was utilized as an alternative to windowing techniques. Results obtained from a plate type structure were analyzed, validated and compared with theoretical predictions
Mestrado
Mecanica dos Solidos
Mestre em Engenharia Mecânica
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Parisot-Dupuis, Hélène. "Application de l'holographie acoustique en soufflerie par mesures LDV." Thesis, Toulouse, ISAE, 2012. http://www.theses.fr/2012ESAE0035/document.

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L’ Holographie acoustique de champ proche (NAH) est une méthode d’imagerie acoustique robuste, mais son application en écoulement peut être limitée par l’utilisation de mesures intrusives de pression ou de vitesse acoustique. Dans cette étude, une procédure holographique applicable en écoulement utilisant des mesures de vitesse non-intrusives est proposée. Cette méthode est basée sur le théorème intégral de Kirchhoff-Helmholtz convecté. La fonction de Green convectée est alors utilisée pour déterminer des propagateurs spatiaux convectés définis dans l’espace réel et incluant l’effet d’un écoulement subsonique uniforme. Les transformées de Fourier discrètes de ces propagateurs permettent alors d’évaluer les champs acoustiques à partir de la mesure du champ de pression ou de vitesse acoustique normale. Le but étant de développer une méthode de caractérisation de sources aéroacoustiques à partir de mesures de vitesse non-intrusives, cette étude se concentre essentiellement sur les propagateurs réels convectés basés sur la mesure de vitesse acoustique. Afin de valider cette procédure,des simulations ont été menées dans le cas de combinaisons de sources monopolaires et dipolaires convectées corrélées ou non. La procédure holographique développée donne de bons résultats par comparaison aux champs acoustiques théoriques. Une comparaison des résultats obtenus par les propagateurs convectés réels, développés dans cette thèse, avec ceux obtenus par leurs formes spectrales, développés par Kwon et al. fin 2010 pour des mesures de pression acoustique, montre l’intérêt d’utiliser la forme réelle pour la reconstruction de la pression acoustique à partir de la mesure de vitesse acoustique normale. L’efficacité de la procédure développée est confirmée par une campagne de mesure en soufflerie avec un haut-parleur affleurant rayonnant au sein d’un écoulement à Mach 0.22, et des mesures non-intrusives effectuées par Vélocimétrie Laser Doppler (LDV). Les champs de vitesse acoustique utilisés pour la procédure holographique sont dans ce cas extraits des mesures LDV par corrélation avec un microphone de référence. La faisabilité de prendre en compte des variations de l’écoulement dans la direction de reconstruction holographique est également vérifiée
Nearfield Acoustic Holography (NAH) is a powerful acoustic imaging method but its application in flow can be limited by intrusive measurements of acoustic pressure or velocity. In this work, a moving fluid medium NAH procedure using non-intrusive velocity measurements is proposed. This method is based on the convective Kirchhoff-Helmholtz integral formula. The convective Green’s function is then used to derive convective realspace propagators including uniform subsonic airflow effects. Discrete Fourier transforms of these propagators allow then the assessment of acoustic fields from acoustic pressure or normal acoustic velocity measurements. As the aim is to derive an aeroacoustic sources characterisation method from non-inrusive velocity measurements, this study is especially focused on real convective velocity-based propagators. In order to validate this procedure, simulations in the case of combinations of monopolar and dipolar sources correlated or not, radiating invarious uniform subsonic flows, have been performed. NAH provides very favorable results when compared to the theoretical fields. A comparison of results obtained by real convective propagators, developed in this work, and those obtained by the spectral ones, developed by Kwon et al. at the end of 2010 for acoustic pressure measurements, shows the interest of using the real-form for NAH acoustic pressure reconstruction from normal acoustic velocity measurements. The efficiency of the developed procedure is confirmed by a wind tunnel campaign with a flush-mounted loudspeaker radiating in a flow at Mach 0.22 and non-intrusive Laser Doppler Velocimetry (LDV) measurements. Acoustic velocity fields used for the NAH procedure are in this case extracted from LDV measurements by correlation with a reference microphone. The feasibility of taking into account mean flow variations in the direction of NAH reconstruction is also checked
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Moraes, Elson Cesar 1976. "Intensidade acustica supersonica : implementação e verificação." [s.n.], 2006. http://repositorio.unicamp.br/jspui/handle/REPOSIP/265371.

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Orientador: Jose Maria Campos dos Santos
Dissertação (mestrado) - Universidade Estadual de Campinas, Faculdade de Engenharia Mecanica
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Resumo: Neste trabalho apresenta-se uma implementação e avaliação experimental da grandeza acustica denominada de Intensidade Acustica Supersonica (IAS), a qual permite determinar a parcela da intensidade acustica de uma fonte sonora que sera radiada para o campo distante. Tal grandeza permite quantificar de forma mais precisa a eficiencia de radiação ou não de radiadores acusticos na solução dos problemas de vibroacustica. A IAS origina-se da Holografia Acustica de Campo Proximo (Nearfield Acoustic Holography - NAH) e tem por objetivo identificar as regiões de uma fonte de ru?do que contribuem para a potencia sonora radiada para o campo distante (supersonica) filtrando, consequentemente, a parcela referente as ondas sonoras recirculantes e evanescentes (subsonicas). O trabalho apresenta uma breve revisão teorica dos fundamentos da holografia acustica plana usando a transformada de Fourier e sua extensão para obtenção da Intensidade Acustica Supersonica. Com base no NAH para sistemas em coordenadas Cartesiano (holografia plana) implementou-se em linguagem MatLab um algoritmo do calculo da IAS e simulações em estrutura plana do tipo placa foram realizadas. Os resultados simulados foram verificados atraves de medições experimentais em uma placa real com as mesmas propriedades, dimensões, condições iniciais e de contorno. Os resultados obtidos são analisados e discutidos
Abstract: This work presents an experimental implementation and evaluation of the acoustic parameter named Supersonic Acoustic Intensity (SAI) which permits determining the part of the acoustic intensity of sound source that will be radiate to farfield. This parameter permits quantify precisely the radiation efficiency or acoustic radiator to solve the vibroacoustic problems. SAI had origin from Nearfield Acoustic Holography (NAH) it has as objective identify the regions of the sound source that contribute to the sound power radiated to the far field (supersonic) filtered out as a result the part of the sound recirculating and evanescence waves (subsonic). The work presents a brief theoretical review of the planar acoustic holography fundaments using the Fourier Transformed and its extension to obtain the supersonic acoustic intensity. With base in the NAH for coordinates systems (planar holography) it was implemented in MatLab language an algorithm from the SAI calculus and simulation in planar structure type plate were achieved. The simulated results were verified through experimental measurements in a realistic plate with the same properties, dimension, initial conditions and boundaries. The results obtained are analyzed and discussed.
Mestrado
Mecanica dos Sólidos e Projeto Mecanico
Mestre em Engenharia Mecânica
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Wang, Chun-kai, and 王俊凱. "Superdirective microphone array with application in nearfield acoustical holography and supersensitive sound pickup." Thesis, 2011. http://ndltd.ncl.edu.tw/handle/78727869214292849640.

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碩士
國立交通大學
機械工程學系
99
There are two topics in this thesis: one is supersensitive sound pickup and the other is super directive microphone array with application in nearfield acoustic holography. The former contains horn and curved array, and we will discuss the theory, design method and the result. Final, the device is applied to the application in a distant recording. Conventional nearfield acoustical holography (NAH) is generally based on the free-field assumption, which can cause errors when interfering sources are present in practical environment. Although the measurement of particle velocity as the input to NAH provides certain advantage, the noise problem of finite difference estimation of particle velocity can nullify the velocity-based reconstruction that is better conditioned than the pressure-based process. Alternatively, this paper examines the feasibility of using directional sensors in each channel of the microphone array such that the robustness of inverse reconstruction is enhanced against reflections from boundaries. With two microphones in each channel, the directivity of each array element is tailored according to various design criteria of first-order differential microphones. Directivity index, front-to-back ratio and constant beam-width are employed as the objective functions for optimizing array filters. The proposed methods are utilized in an Equivalent Source Model (ESM)-based NAH. The proposed techniques are verified by numerical simulations and experiments, with interfering source positioned at various directions. Sound field is reconstructed using the pressure input and the particle velocity estimated by the finite difference method.
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WANG, YI-AN, and 王一安. "Enhancement of nearfield acoustic holography for sound radiation analysis." Thesis, 1991. http://ndltd.ncl.edu.tw/handle/48603806381104105237.

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Books on the topic "Nearfield acoustical holography"

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Brown, Lee A. Real time nearfield acoustic holography. Leicester: De Montfort University, 1998.

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Matzumoto, A. E. Perez. Nearfield acoustic holography: Review and perspectives. Southampton, U.K: University of Southampton, Institute of Sound and Vibration Research, 1989.

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Williams, Earl G. Fourier Acoustics: Sound Radiation and Nearfield Acoustical Holography. Academic Press, 1999.

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Williams, Earl G. Fourier Acoustics: Sound Radiation and Nearfield Acoustical Holography. Academic Press, 1999.

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United States. National Aeronautics and Space Administration. and Pennsylvania State University. Dept. of Physics., eds. Experimental study using nearfield acoustic holography of sound transmission through fuselage sidewall structures. [Washington, D.C.?: National Aeronautics and Space Administration, 1986.

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Experimental study using nearfield acoustic holography of sound transmission through fuselage sidewall structures. [Washington, D.C.?: National Aeronautics and Space Administration, 1986.

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Book chapters on the topic "Nearfield acoustical holography"

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Hayek, Sabih I. "Nearfield Acoustical Holography." In Handbook of Signal Processing in Acoustics, 1129–39. New York, NY: Springer New York, 2008. http://dx.doi.org/10.1007/978-0-387-30441-0_59.

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Bai, M. Robin, and Anna L. Pate. "Velocity-Based Nearfield Acoustic Holography." In Acoustical Imaging, 257–65. Boston, MA: Springer US, 1988. http://dx.doi.org/10.1007/978-1-4613-0725-9_25.

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Gleason, S. M., and Anna L. Pate. "Efficient Sampling for Nearfield Acoustic Holography." In Acoustical Imaging, 249–56. Boston, MA: Springer US, 1988. http://dx.doi.org/10.1007/978-1-4613-0725-9_24.

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Luce, Timothy W., and Sabih I. Hayek. "An Examination of Aperture Effects in Cylindrical Nearfield Holography." In Acoustical Imaging, 267–76. Boston, MA: Springer US, 1988. http://dx.doi.org/10.1007/978-1-4613-0725-9_26.

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Kwon, Hyuck Sang. "Multi-Reference Scan-Based Nearfield Acoustical Holography." In Advanced Nondestructive Evaluation I, 1249–52. Stafa: Trans Tech Publications Ltd., 2006. http://dx.doi.org/10.4028/0-87849-412-x.1249.

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Kirchner, Matteo, and Eugenius Nijman. "Cylindrical Nearfield Acoustical Holography: Practical Aspects and Possible Improvements." In SpringerBriefs in Applied Sciences and Technology, 47–62. Cham: Springer International Publishing, 2015. http://dx.doi.org/10.1007/978-3-319-24055-8_4.

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Eschenberg, K. E., and S. I. Hayek. "Imaging the Nearfield of a Submerged-Plate Using Acoustical Holography." In Proceedings of the Fifteenth International Symposium, July 14–6, 1986, 659–73. Boston, MA: Springer US, 1987. http://dx.doi.org/10.1007/978-1-4684-5320-1_61.

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Jin, Jiangming, Huancai Lu, Weijie Hu, Minzhong Li, and Fang Yuan. "Combined Spherical Nearfield Acoustic Holography and Sound Quality Analyses." In Fluid-Structure-Sound Interactions and Control, 277–82. Berlin, Heidelberg: Springer Berlin Heidelberg, 2013. http://dx.doi.org/10.1007/978-3-642-40371-2_41.

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SARKISSIAN, ANGIE. "NEARFIELD ACOUSTICAL HOLOGRAPHY." In Series on Stability, Vibration and Control of Systems, Series B, 239–76. WORLD SCIENTIFIC, 2002. http://dx.doi.org/10.1142/9789812778536_0008.

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Williams, Earl G. "Spherical Nearfield Acoustical Holography." In Fourier Acoustics, 235–49. Elsevier, 1999. http://dx.doi.org/10.1016/b978-012753960-7/50007-3.

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Conference papers on the topic "Nearfield acoustical holography"

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Raveendra, S., S. Sureshkumar, and E. Williams. "Noise source identification in an aircraft using nearfield acoustical holography." In 6th Aeroacoustics Conference and Exhibit. Reston, Virigina: American Institute of Aeronautics and Astronautics, 2000. http://dx.doi.org/10.2514/6.2000-2097.

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Sureshkumar, S., and S. T. Raveendra. "An Analysis of Regularization Errors in Generalized Nearfield Acoustical Holography." In SAE 2001 Noise & Vibration Conference & Exposition. 400 Commonwealth Drive, Warrendale, PA, United States: SAE International, 2001. http://dx.doi.org/10.4271/2001-01-1616.

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Williams, Earl, and Brian Houston. "New Green functions for nearfield acoustical holography in aircraft fuselages." In Aeroacoustics Conference. Reston, Virigina: American Institute of Aeronautics and Astronautics, 1996. http://dx.doi.org/10.2514/6.1996-1703.

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Ruhala, Richard J., and Courtney B. Burroughs. "Application of Nearfield Acoustical Holography to Tire/Pavement Interation Noise Emissions." In SAE Noise and Vibration Conference and Exposition. 400 Commonwealth Drive, Warrendale, PA, United States: SAE International, 1997. http://dx.doi.org/10.4271/972047.

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Kirchner, Matteo, and Eugene Nijman. "Nearfield Acoustical Holography for the Characterization of Cylindrical Sources: Practical Aspects." In 8th International Styrian Noise, Vibration & Harshness Congress: The European Automotive Noise Conference. 400 Commonwealth Drive, Warrendale, PA, United States: SAE International, 2014. http://dx.doi.org/10.4271/2014-01-2094.

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Ruhala, Richard J., and Courtney B. Burroughs. "Tire/Pavement Interaction Noise Source Identification Using Multi-Planar Nearfield Acoustical Holography." In Noise & Vibration Conference & Exposition. 400 Commonwealth Drive, Warrendale, PA, United States: SAE International, 1999. http://dx.doi.org/10.4271/1999-01-1733.

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Abualfeilat, A., S. Chevalier, D. Tabbert, M. S. Moondra, R. Beniwal, S. Mazza, D. Gaddis, and S. F. Wu. "Diagnostics of Engine Noise During Run-up Using HELS Based Nearfield Acoustical Holography." In SAE 2005 Noise and Vibration Conference and Exhibition. 400 Commonwealth Drive, Warrendale, PA, United States: SAE International, 2005. http://dx.doi.org/10.4271/2005-01-2505.

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Ma, Jianan, Desen Yang, Shengguo Shi, and Xiaoxia Guo. "Nearfield acoustical holography for cylindrical geometry: Resolution and accuracy in the two boundaries." In 2011 IEEE International Conference on Signal Processing, Communications and Computing (ICSPCC). IEEE, 2011. http://dx.doi.org/10.1109/icspcc.2011.6061787.

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Zhang, Weiguo, S. T. Raveendra, Moohyung Lee, and J. Stuart Bolton. "Reconstruction of Noise Source in a Ducted Fan Using a Generalized Nearfield Acoustical Holography." In SAE 2010 World Congress & Exhibition. 400 Commonwealth Drive, Warrendale, PA, United States: SAE International, 2010. http://dx.doi.org/10.4271/2010-01-0416.

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Xiang, Shang, and Weikang Jiang. "Nearfield acoustic holography in noisy environment based on the measurement using an acoustic mask with microphone array." In 170th Meeting of the Acoustical Society of America. Acoustical Society of America, 2015. http://dx.doi.org/10.1121/2.0000192.

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