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A Novel Algorithm Based on 3D-MUSIC Algorithm for Localizing Near-Field Source
Authors:SHAN Zhi-Yong  ZHOU Xi-lang  PEN Gen-jiang
Abstract:A novel 3-D MUSIC algorithm based on the classical 3D-MUSIC algorithm for the location of near-field source was presented. Under the far-field assumption of actual near-field, two algebraic relations of the location parameters between the actual near-field sources and the far-field ones were derived. With Fourier transformation and polynomial-root methods, the elevation and the azimuth of the far-field were obtained, the tracking paths can be developed, and the location parameters of the near-field source can be determined, then the more accurate results can be estimated using an optimization method. The computer simulation results prove that the algorithm for the location of the near-fields is more accurate, effective and suitable for real-time applications.
Keywords:passive source location  Fourier transformation  uniform circle array(UCA)  path-following
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