1. Simultaneous Source Localization and Polarization Estimation via Non-Orthogonal Joint Diagonalization with Vector-Sensors.
- Author
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Xiao-Feng Gong, Ke Wang, Qiu-Hua Lin, Zhi-Wen Liu, and You-Gen Xu
- Subjects
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DIRECTION of arrival estimation , *ELECTROMAGNETISM , *MAXIMUM likelihood statistics , *MULTIPLE Signal Classification , *HYPERCOMPLEX numbers , *TENSOR algebra , *AZIMUTH - Abstract
Joint estimation of direction-of-arrival (DOA) and polarization with electromagnetic vector-sensors (EMVS) is considered in the framework of complex-valued non-orthogonal joint diagonalization (CNJD). Two new CNJD algorithms are presented, which propose to tackle the high dimensional optimization problem in CNJD via a sequence of simple sub-optimization problems, by using LU or LQ decompositions of the target matrices as well as the Jacobi-type scheme. Furthermore, based on the above CNJD algorithms we present a novel strategy to exploit the multi-dimensional structure present in the second-order statistics of EMVS outputs for simultaneous DOA and polarization estimation. Simulations are provided to compare the proposed strategy with existing tensorial or joint diagonalization based methods. [ABSTRACT FROM AUTHOR]
- Published
- 2012
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