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This article presents an algorithm for recovering radiation sources from a printed circuit board in the near field. The model of the printed circuit board is represented by the Hertz dipoles, the equations for which are known. The basis of the reconstruction algorithm is LASSO regression, which allows one to recover the parameters of radiation sources with a higher accuracy than the classical Tikhonov regularization method widely used in similar problems. To use the reconstruction algorithm, it is necessary to have experimental data on electromagnetic radiation from the printed circuit board. Such data can be obtained using a planar scan method. This article presents the experimental results of reconstructing radiation sources from a printed circuit board using the proposed algorithm.

Algorithm for recovery of electromagnetic radiation sources from a printed circuit board in the near zone.