Research Article
Using a Planar Array of MEMS Microphones to Obtain Acoustic Images of a Fan Matrix
Table 1
Errors on the estimated center coordinates.
| | Azimuth error [°] | Elevation error [°] |
| Fan #1 | 0.60 | 0.43 | Fan #2 | 1.67 | 0.63 | Fan #3 | 0.15 | 0.77 | Fan #4 | 2.07 | 1.41 | Fan #5 | 2.33 | 1.14 | Fan #6 | 1.83 | 0.92 | Fan #7 | 1.40 | 0.28 | Fan #8 | 2.49 | 0.24 | Fan #9 | 1.25 | 1.46 |
| Averaged error | 1.53 | 0.81 |
| Standard deviation | 1.70 | 0.92 |
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