Experimental validation of TOA-based methods for microphones array positions calibration
Experimental validation of TOA-based methods for microphones array positions calibration
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DOI：
10.1109/icassp.2016.7472271
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发表时间：
2016-03
期刊：
影响因子：
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通讯作者：
Trung-Kien Le;Nobutaka Ono;T. Nowakowski;L. Daudet;J. Rosny
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作者：
Trung-Kien Le;Nobutaka Ono;T. Nowakowski;L. Daudet;J. Rosny
这项研究是对一种新的闭合形式的自动阵列位置校准方法的实验验证，该方法基于源和传感器之间的到达时间(TOA)测量。建立了一个由121个麦克风和十几个声源组成的大型阵列的实验。我们首先表明，当考虑整个阵列时，这种校准方法给出的结果与参考最先进的声学方法相当。实验结果表明，当信号源和麦克风的数目减少时，新方法可以得到明显更好的结果，证实了数值模拟的结果。最后，我们讨论了阵列位置校准的方法学问题。
This study is an experimental validation of a new closed-form method for automatic array position calibration, based on time of arrival (TOA) measurements between sources and sensors. An experiment with a large array composed of 121 microphones and a dozen of sources has been set up. We first show that, when considering the whole array, this calibration method gives results on par with a reference state-of-the-art acoustic method. We then show experimentally that the new method provides significantly better results when the number of sources and microphones decreases, confirming numerical simulations. We conclude the paper with a discussion on methodological issues for array position calibration.