Partial field decomposition of multi-source cyclostationary sound field

Chen, Zhimin; Zhu, Haichao; Mao, Rongfu

doi:10.1016/j.apacoust.2011.10.006

Cited by 4 publications

(3 citation statements)

References 5 publications

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“…The accuracy of partial field decomposition highly depends on the reference locations when pressures are used as references [9][10][11][12]. In this section, the influence of the locations of particle velocity references on the decomposition accuracy was investigated.…”

Section: Influences Of Reference Locations and Directions Of Particlementioning

confidence: 99%

“…Kim et al [9] introduced a method to determine the optimal reference locations by maximizing the multiple signal classification power spectrum and Wall et al [10] presented references per coherence length as a figure of merit to guide inter-reference spacing in reference array design. Kwon et al [11] improved the virtual coherence procedure to apply to the nonstationary sound field, and Chen [12] studied the partial source decomposition in a cyclostationary sound field. Based on the compensation for source nonstationary, Lee et al [13] applied the cylindrical NAH to visualize the aeroacoustic source.…”

Section: Introductionmentioning

confidence: 99%

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Partial field decomposition using particle velocity references

Wu¹,

Jing²,

Nie³

2020

J. vibroeng.

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In existing partial field decomposition methods, the pressures are generally used as references. This paper is going to use the particle velocities as the references to decompose the sound field radiated by incoherent or partially coherent sources into mutually incoherent partial fields, and evaluate its performance by comparing with the method using pressure references. Both numerical simulations and experiment confirm the effectiveness of the method using particle velocity references for partial field decomposition and demonstrate its superiority over the method using pressure references, and it is also shown through numerical simulations that the particle velocity references almost always perform better than the pressure references as long as the references are located close to the sources and the directions of particle velocity references are perpendicular to the source plane as far as possible.

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Section: Influences Of Reference Locations and Directions Of Particlementioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Partial field decomposition using particle velocity references

Wu¹,

Jing²,

Nie³

2020

J. vibroeng.

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show abstract

“…The Bellhop model was originally proposed by Porter [2,3] and others. This model is more accurate for high-frequency, distance-related ocean acoustic propagation problems, and has greatly improved computational accuracy and real-time performance [4,5]. As an important factor affecting the sound propagation characteristics of the underwater sound field, the marine environment has always been the research object of many scholars.…”

Section: Introductionmentioning

confidence: 99%

Influences of Ocean Environment on Sound Propagation Based on Bellhop Model

Pang

Jiang

2023

J. Phys.: Conf. Ser.

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The actual marine environment is complex and changeable, and different marine environmental factors have an important impact on sound propagation. Based on the Bellhop model, this paper studies the sound propagation characteristics under different marine environmental factors, quantitatively analyzes the differences in the sound propagation characteristics when the seabed topography, sound velocity profile, and sound source emission angle change, and summarizes the impact on underwater sound propagation under different conditions, so as to provide a theoretical numerical basis for the ocean sound field in the actual complex environment, and further serve the research of the ocean sound field.

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Localization of cyclostationary acoustic sources via cyclostationary beamforming and its high spatial resolution implementation

Zhang,

Wang,

et al. 2023

Mechanical Systems and Signal Processing

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Partial field decomposition of multi-source cyclostationary sound field

Cited by 4 publications

References 5 publications

Partial field decomposition using particle velocity references

Partial field decomposition using particle velocity references

Influences of Ocean Environment on Sound Propagation Based on Bellhop Model

Localization of cyclostationary acoustic sources via cyclostationary beamforming and its high spatial resolution implementation

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