Fundamental limitations for DOA and polarization estimation with applications in array signal processing

Sven Nordebo, Mats Gustafsson, Jonas Lundback

Research output: Contribution to journalArticlepeer-review

17 Citations (SciVal)

Abstract

Using a generic electromagnetic model based on the spherical vector harmonics, we provide the Cramer-Rao lower bound (CRB) for direction-on-arrival (DOA) and polarization estimation with arbitrary multiport antennas. By reciprocity, the receiving multiport antenna is characterized in terms of the transmission matrix from incident voltage waves to multipole coefficients of the outgoing spherical vector waves. Explicit results of the CRB for the Gaussian case is given in terms of the transmission matrix, the spherical vector harmonics and its spatial derivatives. Numerical examples are included to illustrate the results.
Original languageEnglish
Pages (from-to)4055-4061
JournalIEEE Transactions on Signal Processing
Volume54
Issue number10
DOIs
Publication statusPublished - 2006

Subject classification (UKÄ)

  • Electrical Engineering, Electronic Engineering, Information Engineering

Keywords

  • antenna theory
  • direction-of-arrival estimation

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