Title :
Regularized ESPRIT-based direction finding and polarization estimation with one electromagnetic vector sensor
Author :
Xu, You Gen ; Liu, Zhi Wen
Author_Institution :
Dept. of Electron. Eng., Beijing Inst. of Technol., China
fDate :
31 Aug.-4 Sept. 2004
Abstract :
This contribution presents two versions of so-called regularized ESPRIT to jointly estimate 2-D directions-of-arrival (DOAs) and polarizations of multiple non-Gaussian independent polarized sources by using one electromagnetic (EM) vector sensor in the sense of regularized least squares (RLS) and regularized total least squares (RTLS), respectively. In the given two methods, second-order and fourth-order statistics are combined to restore the six-dimensional polarization-angular coherence structure for one EM vector sensor from which unambiguous joint estimation of 2-D DOAs and polarizations can be further obtained via a vector cross-product or a multi-phase-comparing procedure. Simulation results are also included to validate the proposed methods.
Keywords :
array signal processing; coherence; direction-of-arrival estimation; electromagnetic devices; higher order statistics; least squares approximations; navigation; 2D directions-of-arrival estimation; electromagnetic vector sensor; fourth-order statistics; multiple non-Gaussian independent polarized source; polarization estimation; regularized ESPRIT-based direction finding; regularized total least square; second-order statistics; six-dimensional polarization-angular coherence structure; Apertures; Array signal processing; Direction of arrival estimation; Eigenvalues and eigenfunctions; Electromagnetic wave polarization; Frequency estimation; Least squares approximation; Resonance light scattering; Sensor arrays; Statistics;
Conference_Titel :
Signal Processing, 2004. Proceedings. ICSP '04. 2004 7th International Conference on
Print_ISBN :
0-7803-8406-7
DOI :
10.1109/ICOSP.2004.1452666