Multichannel broadband Fano theory for arbitrary lossless antennas with applications in DOA estimation

Sven Nordebo, Mats Gustafsson

Research output: Chapter in Book/Report/Conference proceedingPaper in conference proceedingResearchpeer-review

4 Citations (SciVal)

Abstract

In this paper, we consider fundamental limitations for DOA estimation with arbitrary lossless antennas or antenna arrays inserted inside a sphere. Spherical vector modes and their associated equivalent circuits and Q factor approximations are employed as a general framework for the analysis. The classical broadband matching theory by Fano is extended to a general multiport S-parameter model of the antennas and fundamental bounds are given for the scattering parameters with respect to bandwidth and electrical size of the sphere. Finally, assuming a statistical signal model with Gaussian receiver noise, the Cramer-Rao lower bound is used to derive fundamental upper bounds for the performance of DOA estimation by a sphere.
Original languageEnglish
Title of host publicationProceedings IEEE International Conference on Acoustics, Speech, and Signal Processing (ICASSP '05)
PublisherIEEE - Institute of Electrical and Electronics Engineers Inc.
Pages969-972
Number of pages4
Volume4
ISBN (Print)0-7803-8874-7
DOIs
Publication statusPublished - 2005
Event2005 IEEE International Conference on Acoustics, Speech, and Signal Processing (ICASSP) - Philadelphia, PA, Philadelphia, PA, United States
Duration: 2005 Mar 182005 Mar 23

Publication series

Name
Volume4
ISSN (Print)1520-6149

Conference

Conference2005 IEEE International Conference on Acoustics, Speech, and Signal Processing (ICASSP)
Abbreviated titleICASSP '05
Country/TerritoryUnited States
CityPhiladelphia, PA
Period2005/03/182005/03/23

Subject classification (UKÄ)

  • Electrical Engineering, Electronic Engineering, Information Engineering

Keywords

  • equivalent circuits
  • multiport networks
  • impedance matching
  • direction-of-arrival estimation
  • array signal processing
  • antenna arrays
  • Gaussian noise
  • S-parameters
  • Q-factor

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