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