Research Article
Optimization of Fixed Microphone Array in High Speed Train Noises Identification Based on Far-Field Acoustic Holography
Table 2
Result of optimization microphones array coordinate.
| Number of microphones | | |
| 1 | 0 | 0 | 2 | 1.9963 | 1.9963 | 3 | −1.9963 | 1.9963 | 4 | −1.9963 | −1.9963 | 5 | 1.9963 | −1.9963 | 6 | 2.0000 | 2.0000 | 7 | −2.0000 | 2.0000 | 8 | −2.0000 | −2.0000 | 9 | 2.0000 | −2.0000 | 10 | 0.0000 | 0.0000 | 11 | 0.0000 | 0.0000 | 12 | 0.0000 | 0.0000 | 13 | 0.0000 | 0.0000 | 14 | 0.0666 | 0.0666 | 15 | −0.0666 | 0.0666 | 16 | −0.0666 | −0.0666 | 17 | 0.0666 | −0.0666 | 18 | 1.9371 | 1.9371 | 19 | −1.9371 | 1.9371 | 20 | −1.9371 | −1.9371 | 21 | 1.9371 | −1.9371 | 22 | 1.9999 | 1.9999 | 23 | −1.9999 | 1.9999 | 24 | −1.9999 | −1.9999 | 25 | 1.9999 | −1.9999 | 26 | 0.0037 | 0.0037 | 27 | −0.0037 | 0.0037 | 28 | −0.0037 | −0.0037 | 29 | 0.0037 | −0.0037 |
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