Chin. Phys. Lett.  2004, Vol. 21 Issue (1): 110-113    DOI:
Original Articles |
A Fast Field Scheme for the Parametric Sound Radiation from Rectangular Aperture Source
YANG Jun1,2; SHA Kan1;GAN Woon-Seng1;TIAN Jing2
1School of Electrical and Electronic Engineering, Nanyang Technological University, Singapore 639798 2Institute of Acoustics, Chinese Academy of Sciences, Beijing 100080
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YANG Jun, SHA Kan, GAN Woon-Seng et al  2004 Chin. Phys. Lett. 21 110-113
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Abstract A virtual complex source approach has been developed to calculate numerically the ultrasound field generated by a rectangular planar source with high efficiency. The sound field can be treated as the resultant sound pressure from a set of complex virtual sources located at a complex distance, and then by exploiting the integrability of Gaussian function, a substantial analytical reduction to single integral is derived for the second-order field of the sum-, difference-frequency and second harmonic components. The validity of this fast field scheme is confirmed by comparison of numerical results and the experimental data published previously.


Keywords: 43.25.Lj      43.35.+d     
Published: 01 January 2004
PACS:  43.25.Lj (Parametric arrays, interaction of sound with sound, virtual sources)  
  43.35.+d (Ultrasonics, quantum acoustics, and physical effects of sound)  
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https://cpl.iphy.ac.cn/       OR      https://cpl.iphy.ac.cn/Y2004/V21/I1/0110
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