Optimization of Fixed Microphone Array in High Speed Train Noises Identification Based on Far-Field Acoustic Holography

<div>The experiment results of the static speaker in the anechoic room. (a) Result from the acoustic holography method; (b) virtual microphone array.</div>

Advances in Acoustics and Vibration

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Figure 7

Figure 7: Optimization of Fixed Microphone Array in High Speed Train Noises Identification Based on Far-Field Acoustic Holography 