Joint 4-D DOA and polarization estimation based on linear tripole arrays

Xiang Lan, Wei Liu, Henry Y T NGAN

Research output: Chapter in book/report/conference proceedingConference contributionpeer-review

4 Citations (Scopus)

Abstract

Electromagnetic (EM) vector sensor arrays can track both the polarisation and direction of arrival (DOA) parameters of the impinging signals. For crossed-dipole linear arrays, due to inherent limitation of the structure, it can only track one DOA parameter and two polarisation parameters. This problem could be solved by extending the geometry to a two-dimensional (2-D) rectangular array so that both the azimuth and elevation angles of the signal can be estimated. In this paper, instead of extending the array to a higher dimension, we replace the crossed-dipoles by tripoles and construct a linear tripole array. It will be shown that such a structure can estimate the 2-D DOA and 2-D polarisation information effectively and a dimension-reduction based MUSIC algorithm is developed so that the 4-D estimation problem can be simplified to two separate 2-D estimation problems, significantly reducing the computational complexity of the solution.

Original languageEnglish
Title of host publication2017 22nd International Conference on Digital Signal Processing, DSP 2017
PublisherInstitute of Electrical and Electronics Engineers Inc.
ISBN (Electronic)9781538618950
DOIs
Publication statusPublished - 3 Nov 2017
Event2017 22nd International Conference on Digital Signal Processing, DSP 2017 - London, United Kingdom
Duration: 23 Aug 201725 Aug 2017

Publication series

NameInternational Conference on Digital Signal Processing, DSP
Volume2017-August

Conference

Conference2017 22nd International Conference on Digital Signal Processing, DSP 2017
Country/TerritoryUnited Kingdom
CityLondon
Period23/08/1725/08/17

Scopus Subject Areas

  • Signal Processing

User-Defined Keywords

  • DOA estimation
  • linear tripole array
  • polarisation estimation
  • vector sensor

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