Simultaneous source localization and polarization estimation via non-orthogonal joint diagonalization with vector-sensors

Sensors (Basel). 2012;12(3):3394-417. doi: 10.3390/s120303394. Epub 2012 Mar 8.


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.

Keywords: LQ; LU; complex non-orthogonal joint diagonalization; direction-of-arrival; electromagnetic vector-sensor; polarization.

Publication types

  • Research Support, Non-U.S. Gov't