Joint DOA and Polarization Estimation with Crossed-Dipole and Tripole Sensor Arrays

Xiang Lan, Wei Liu*, Henry Y T NGAN

*Corresponding author for this work

Research output: Contribution to journalJournal articlepeer-review

20 Citations (Scopus)


Electromagnetic vector sensor arrays can track both the polarization and direction of arrival (DOA) of the impinging signals. For linear crossed-dipole arrays, as shown by our analysis, due to inherent limitation of the structure, it can only track one DOA parameter and two polarization parameters. For full 4-D (two DOA, and two polarization parameters) estimation, we could extend the linear crossed-dipole array to the planar case. In this article, instead of extending the array geometry, we replace the crossed-dipoles by tripoles and construct a linear tripole array. Detailed proof shows that such a structure can estimate the 2-D DOA and 2-D polarization information effectively in general. A brief comparison between the planar crossed-dipole array and the linear tripole array is performed at last, showing that although the planar structure has a better performance, it is achieved at the cost of increased physical size.

Original languageEnglish
Article number9080530
Pages (from-to)4965-4973
Number of pages9
JournalIEEE Transactions on Aerospace and Electronic Systems
Issue number6
Publication statusPublished - Dec 2020

Scopus Subject Areas

  • Aerospace Engineering
  • Electrical and Electronic Engineering

User-Defined Keywords

  • Direction of arrival (DOA)
  • linear crossed-dipole array
  • linear tripole array
  • polarization estimation


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