Open AccessSpatially spread dipole/loop quint for vector‐cross‐product‐based direction finding and polarisation estimation
Author(s) -
Gong XiaoFeng,
Jiang JiaCheng,
Li Hui,
Xu YouGen,
Liu ZhiWen
Publication year - 2018
Publication title -
iet signal processing
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.384
H-Index - 42
eISSN - 1751-9683
pISSN - 1751-9675
DOI - 10.1049/iet-spr.2017.0232
Subject(s) - estimator , dipole , product (mathematics) , computer science , loop (graph theory) , topology (electrical circuits) , algorithm , physics , mathematics , geometry , combinatorics , statistics , quantum mechanics
We propose a spatially spread quint (SS‐quint) of only dipoles or loops, for direction of arrival (DOA) and polarisation estimation. The proposed SS‐quint is spatially centrosymmetric. Based on this centrosymmetry, the authors develop a computationally low‐cost DOA and polarisation estimator via vector‐cross‐product. Compared with the spatially spread electromagnetic vector‐sensor, the proposed SS‐quint consists of only dipoles or loops, and thus, its components have more consistent responses. Compared with a previously proposed SS‐quint configuration, which is required to be strictly uniformly L‐shaped, the proposed SS‐quint has a more flexible array configuration in the sense that it is not restricted to any particular shape. The Cramér–Rao bounds are derived and simulation results are provided, to demonstrate the performance of the proposed SS‐quint array configuration.