Real-time algorithm for acoustic imaging with a microphone array.
Real-time algorithm for acoustic imaging with a microphone array.
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DOI：
10.1121/1.3100641
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发表时间：
2009-04
期刊：
影响因子：
--
通讯作者：
Xun Huang
中科院分区：
文献类型：
--
作者：
Xun Huang
Acoustic phased array has become an important testing tool in aeroacoustic research, where the conventional beamforming algorithm has been adopted as a classical processing technique. The computation however has to be performed off-line due to the expensive cost. An innovative algorithm with real-time capability is proposed in this work. The algorithm is similar to a classical observer in the time domain while extended for the array processing to the frequency domain. The observer-based algorithm is beneficial mainly for its capability of operating over sampling blocks recursively. The expensive experimental time can therefore be reduced extensively since any defect in a testing can be corrected instantaneously.
