An Iterative Approach for EMI Source Reconstruction Based on Phaseless and Single-Plane Near-Field Scanning
| Autor: | Rui Yang, Xing-Chang Wei, Yu-Fei Shu, En-Xiao Liu |
|---|---|
| Rok vydání: | 2018 |
| Předmět: |
Observational error
Computer science Plane (geometry) 020208 electrical & electronic engineering Phase (waves) 020206 networking & telecommunications Near and far field 02 engineering and technology Condensed Matter Physics Atomic and Molecular Physics and Optics Electromagnetic interference Sampling (signal processing) EMI 0202 electrical engineering electronic engineering information engineering Electronic engineering Electrical and Electronic Engineering Algorithm Interpolation |
| Zdroj: | IEEE Transactions on Electromagnetic Compatibility. 60:937-944 |
| ISSN: | 1558-187X 0018-9375 |
| DOI: | 10.1109/temc.2017.2756902 |
| Popis: | Electromagnetic interference (EMI) source reconstruction typically requires accurate measurements of both near-field magnitude and phase information. In some cases, an accurate phase measurement may not be practically feasible. A phase-retrieval method based on phaseless and single-plane near-field scanning is presented in this paper. By using an interpolation technique, the original data of field magnitude used for reconstruction can be divided into two groups: the sampling and interpolation groups. Subsequently, iteration algorithm together with the singular value decomposition method is employed to reconstruct the equivalent dipole model of the EMI source. Both numerical example and measurement example are given to verify the effectiveness of the proposed algorithm. The major advantage of the proposed method is that it can save a half scanning time and still produces a valid EMI source model. It also shows an ability to reduce some measurement errors. |
| Databáze: | OpenAIRE |
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