Ambiguity resolving in parameter estimation of a single near-field source with uniform circular array via clustering

2016 ◽  
Author(s):  
Xin Chen ◽  
Xuefeng Zhang ◽  
Zhen Liu ◽  
Xizhang Wei
Keyword(s):  
Parameter Estimation ◽  
Near Field ◽  
Circular Array ◽  
Field Source

scholarly journals Mixed Incoherent Far-Field and Near-Field Source Localization under Uniform Circular Array

Sensors ◽  
2018 ◽  
Vol 18 (5) ◽  
pp. 1432 ◽  
Author(s):  
Xiaolong Su ◽  
Zhen Liu ◽  
Xin Chen ◽  
Xiang Li
Keyword(s):  
Source Localization ◽  
Near Field ◽  
Far Field ◽  
Circular Array ◽  
Field Source

scholarly journals A Subspace-Based Compensation Method for the Mutual Coupling in Concentric Circular Ring Arrays for Near-Field Source Localisation

2012 ◽  
Vol 2012 ◽  
pp. 1-13 ◽  
Author(s):  
Mohammed Jainul Abedin ◽  
Ananda Sanagavarapu Mohan
Keyword(s):  
Parameter Estimation ◽  
Mutual Coupling ◽  
Near Field ◽  
Three Dimensional ◽  
Super Resolution ◽  
Circular Ring ◽  
Dipole Antennas ◽  
Field Source ◽  
Full Wave ◽  
Compensation Approach

We propose a technique for compensating the effect of mutual coupling on parameter estimation that is suitable with any subspace-based super-resolution algorithms. A Concentric circular ring array (CCRA) formed using thin dipole antennas in the receiving mode is employed to estimate the parameters of electromagnetic sources located in the radiating near field of the array. A CCRA geometry that obtains a lowest Cramer-Rao lower bound (CRLB) in the presence of array mutual coupling is chosen for investigation. The mutual coupling among antenna elements of the array would affect the orthogonality of subspaces when MUSIC or ESPRIT algorithms are used for parameter estimation. The proposed method obtains a compensation matrix that restores the orthogonality between the subspaces there by improving the accuracy of estimation. To avoid three-dimensional searches, the range parameter is estimated using a cross-correlation-based method. Numerical simulation using a full-wave electromagnetic (EM) solver is employed to demonstrate the effectiveness of the proposed compensation approach.

Multiple near‐field source localisation with uniform circular array

2013 ◽  
Vol 49 (24) ◽  
pp. 1509-1510 ◽  
Author(s):  
Yuntao Wu ◽  
Hai Wang ◽  
Yanbin Zhang ◽  
Yang Wang
Keyword(s):  
Near Field ◽  
Circular Array ◽  
Field Source ◽  
Source Localisation

Decoupled Location Parameter Estimation of Near-Field Sources with Symmetric ULA

2011 ◽  
Vol E94-B (9) ◽  
pp. 2646-2649
Author(s):  
Bum-Soo KWON ◽  
Tae-Jin JUNG ◽  
Kyun-Kyung LEE
Keyword(s):  
Parameter Estimation ◽  
Near Field ◽  
Location Parameter
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