Joint Estimation of DOA and Polarization with CLD Pair Cylindrical Array Based on Quaternion Model
Author(s) -
Guibao Wang,
Haihong Tao,
Lanmei Wang,
Cao Zeng
Publication year - 2014
Publication title -
mathematical problems in engineering
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.262
H-Index - 62
eISSN - 1026-7077
pISSN - 1024-123X
DOI - 10.1155/2014/806853
Subject(s) - quaternion , azimuth , eigendecomposition of a matrix , polarization (electrochemistry) , eigenvalues and eigenvectors , direction of arrival , algorithm , covariance matrix , conformal map , dipole , polarimetry , mathematics , computer science , mathematical analysis , physics , geometry , optics , telecommunications , chemistry , quantum mechanics , antenna (radio) , scattering
This paper proposes a quaternion-ESPRIT algorithm for closed-form estimation of direction of arrival (DOA) and polarization, using a cylindrical conformal array configuration. First, the array steering vector and the elevation are estimated using a quaternion eigenvalue decomposition of the data covariance matrix. Second, the azimuth is estimated. Finally, the polarization parameters are estimated using the relationships between the dipoles and the loops. These estimates are automatically matched. Simulation results show that the performance of quaternion method is obviously better than that of the long-vector method
Accelerating Research
Robert Robinson Avenue,
Oxford Science Park, Oxford
OX4 4GP, United Kingdom
Address
John Eccles HouseRobert Robinson Avenue,
Oxford Science Park, Oxford
OX4 4GP, United Kingdom