Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
8869158 | Environmental Research | 2018 | 7 Pages |
Abstract
A comparative study was made of three methods of interpolation - inverse distance weighting (IDW), spline and ordinary kriging - after optimization of their characteristic parameters. These interpolation methods were used to represent the electric field levels for three emission frequencies (774Â kHz, 900Â kHz, and 1107Â kHz) and for the electrical stimulation quotient, QE, characteristic of complex electromagnetic environments. Measurements were made with a spectrum analyser in a village in the vicinity of medium-wave radio broadcasting antennas. The accuracy of the models was quantified by comparing their predictions with levels measured at the control points not used to generate the models. The results showed that optimizing the characteristic parameters of each interpolation method allows any of them to be used. However, the best results in terms of the regression coefficient between each model's predictions and the actual control point field measurements were for the IDW method.
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Authors
Montaña Rufo, Alicia AntolÃn, Jesús M. Paniagua, Antonio Jiménez,