Abstract
A new method of near-field radiation source localization, which is based on passive synthetic array (PSA) using single channel receiver, is proposed in this paper. Based on the concept of PSA in combination with the spatial spectrum estimation, the paper uses a revised multiple signal classification (MUSIC) algorithm to estimate the distance and angle of interfering sources, and also proposes a method of Hilbert phase extraction based on the EMI receiver to locate near-field radiation sources. The derived array model is structurally simpler than the conventional array model, and solves the problem of multi-channel amplitude-phase inconsistency. It also avoids the problem that the model size is too big to use in the near-field situation. The feasibility of this method is demonstrated with simulation and experiment.
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