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A new method based on fourth-order cumulant for the joint estimation of the range and DOA of spatial near-field sources is presented. The proposed method adopts the non-centro-symmetric array, and constructs three cumulant matrixes using received array data; the aperture loss is effectively avoided. The method estimates the DOA and range parameters by the tripartite relationships among subspace matrixes,...
In the paper, the problem of broadband near-field source localization is investigated. A novel method for joint range and bearing estimation of broadband near-field sources is proposed using coherent signal subspace method (CSM) and fourth-order cumulant. The broadband of near-field source is divided into multiple narrowband frequency bins. Coherent focusing of the received data over multiple frequency...
A vast majority of the existing eigen decomposition based localization schemes invoke the plane-wave assumption when estimating the localization parameter of multiple sources. When the sources are located close to the array, these techniques may no longer perform satisfactorily. Most modulated communication signals exhibit cyclostationarity. In this paper a new algorithm for near-field sources localization...
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