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

<table class="table-group" id="tab3"><tr><td><table class="table"><tr><td class="thead-hr" colspan="3"><hr/></td></tr><tr><td class="align_left" rowspan="3">(a)</td><td class="align_center" colspan="2">⁢Equal distance of 21 microphones</td></tr><tr><td class="align_center">SLR</td><td class="align_center">MLA</td></tr><tr><td class="align_center">0.5216</td><td class="align_center">0.0068</td></tr><tr><td class="align_center" colspan="3"><hr/></td></tr><tr><td class="align_left" rowspan="3">(b)</td><td class="align_center" colspan="2">⁢Optimization of 19 microphones</td></tr><tr><td class="align_center">SLR</td><td class="align_center">MLA</td></tr><tr><td class="align_center">0.4531</td><td class="align_center">0.0045</td></tr><tr class="table-tr"><td colspan="3"><hr class="tbody-hr"/></td></tr></table></td></tr></table>

Advances in Acoustics and Vibration

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Table 3

Table 3: Optimization of Fixed Microphone Array in High Speed Train Noises Identification Based on Far-Field Acoustic Holography 