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物理学报. 2004, 53(8): 2607-2613.
doi: 10.7498/aps.53.2607.
空间声场全息重建的波叠加方法研究
- 收稿日期: 2003-10-27
- 修回日期: 2003-11-30
- 刊出日期: 2004-08-16
English Abstract
Investigation on holographic reconstruction of sound field using wave superposition approach
- Received Date:
27 October 2003
- Accepted Date:
30 November 2003
- Published Online:
16 August 2004
Abstract: Nearfield acoustic holography (NAH) based on wave superposition approach (WSA) is proposed and applied to radiation analysis of sound sources with arbitrarily shaped surface. In problem of calculating acoustic radiation, boundary element method (BEM) is realized by discretizing acoustic and position variables on the boundary surface, while WSA is accomplished by superposing wave fields generated by simple sources interior to the radiator. Therefore, there are no problems such as parameters interpolation, singular integration etc. in WSAbased acoustic holography, which are inherent to BEMbased NAH. The principle of WSAbased acoustic holography is easier to understand, and it is more amiable to implement on the computer. The results of the experiment show that satisfactory precision has been obtained in the reconstruction of sound field using WSAbasedacoustic holography.
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