Research on microphone phase array design based on surrogate model

Ding Cunwei; Li Zhoufu; Zhang Xue; Zhou Guocheng

doi:10.11729/syltlx20170151

Volume 32 Issue 4

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Journal of Experiments in Fluid Mechanics > 2018 > 32(4): 93-98, 103. > DOI: 10.11729/syltlx20170151

Ding Cunwei, Li Zhoufu, Zhang Xue, Zhou Guocheng. Research on microphone phase array design based on surrogate model[J]. Journal of Experiments in Fluid Mechanics, 2018, 32(4): 93-98, 103. DOI: 10.11729/syltlx20170151

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Research on microphone phase array design based on surrogate model

Aerodynamics Research Institute, Aviation Industry Corporation of China, Harbin 150001, China

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Received Date: November 21, 2017
Revised Date: February 06, 2018

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Abstract

In aero-acoustic wind tunnel tests, the improvement of the microphone phase array according to the noise source features must be conducted as fast as possible to ensure the required efficiency of the tests. An optimization method based on the Kriging surrogate model is proposed in this study. The maximum sidelobe level and the resolution of the microphone phase array are obtained by analyzing the results computed from the point spread function. A Kringing surrogate model is constructed based on the response values computed on sample points. Then the surrogate model was utilized to fast assess the maximum sidelobe level and the resolution of the microphone phase array, which avoided the high computational cost caused by computing the point spread function. This method can improve the performance of the microphone phase array effectively for aero-acoustic wind tunnel tests.
- microphone phase array,
- optimization,
- surrogate model,
- resolution,
- maximum sidelobe level

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