Research Article
Application of Functional Link Artificial Neural Network for Prediction of Machinery Noise in Opencast Mines
Table 3
Simulation study of grader noise.
| Distance from the source (meters) | Measured field data (dBA) | Prediction result (dBA) | Average percentage error (dBA) | | VDI | PPN | FLANN | LeNN | PPN | FLANN | LeNN |
| 1 | 105.3000 | 98.6919 | 74.1198 | 89.9755 | 81.4871 | | | | 2 | 103.4000 | 96.7828 | 74.1198 | 95.4768 | 81.4871 | | | | 3 | 101.2000 | 94.5738 | 74.1198 | 92.6776 | 81.4871 | | | | 4 | 98.7000 | 92.0648 | 74.1198 | 89.4572 | 81.4871 | | | | 5 | 97.2000 | 90.5559 | 74.1198 | 87.9020 | 81.4871 | | | | 6 | 95.5000 | 88.8469 | 74.1198 | 85.9905 | 81.4871 | | | | 7 | 94.3000 | 87.6380 | 74.1198 | 82.7701 | 81.4871 | | | | 8 | 94.1000 | 87.4291 | 85.8609 | 93.3190 | 94.5712 | | | | 9 | 93.7000 | 87.0202 | 85.8609 | 94.0383 | 94.5712 | | | | 10 | 93.2000 | 86.5113 | 85.8609 | 94.0383 | 94.5712 | | | | 11 | 92.6000 | 85.9025 | 85.8609 | 87.6493 | 94.5712 | | | | 12 | 91.8000 | 85.0937 | 85.8609 | 88.3686 | 94.5712 | | | | 13 | 90.4000 | 83.6848 | 85.8609 | 88.1936 | 94.5712 | | | | 14 | 88.6000 | 81.8760 | 85.8609 | 91.4140 | 94.5712 | | | | 15 | 88.5000 | 81.7672 | 76.5756 | 85.3685 | 85.3813 | 9.56 | 6.15 | 9.76 | 16 | 88.2000 | 81.4585 | 76.5756 | 85.3685 | 85.3813 | | | | 17 | 87.9000 | 81.1497 | 76.5756 | 88.5889 | 85.3813 | | | | 18 | 87.3000 | 80.5410 | 76.5756 | 88.4139 | 85.3813 | | | | 19 | 86.5000 | 79.7323 | 76.5756 | 87.6947 | 85.3813 | | | | 20 | 85.8000 | 79.0236 | 76.5756 | 87.6947 | 85.3813 | | | | 21 | 85.4000 | 78.6149 | 76.5756 | 85.1287 | 85.3813 | | | | 22 | 85.1000 | 78.3063 | 74.3142 | 84.4095 | 85.3813 | | | | 23 | 84.6000 | 77.7976 | 74.3142 | 84.4095 | 85.3813 | | | | 24 | 84.2000 | 77.3890 | 73.2126 | 81.1891 | 85.3813 | | | | 25 | 83.8000 | 76.9804 | 73.2126 | 83.1006 | 82.0894 | | | | 26 | 83.2000 | 76.3718 | 63.5968 | 74.1068 | 66.3679 | | | | 27 | 82.9000 | 76.0632 | 71.4890 | 81.4353 | 82.0894 | | | | 28 | 82.5000 | 75.6547 | 60.3181 | 71.0614 | 67.0982 | | | | 29 | 82.1000 | 75.2461 | 60.3181 | 71.7806 | 67.3327 | | | | 30 | 81.8000 | 74.9376 | 60.3181 | 71.7806 | 67.3327 | | | |
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