Du är här

Sensitivity analysis for antenna near-field imaging

Författare:
Publiceringsår: 2007
Språk: Engelska
Sidor: 94-101
Publikation/Tidskrift/Serie: IEEE Trans. Signal Process.
Volym: 55
Nummer: 1
Dokumenttyp: Artikel
Förlag: IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC

Sammanfattning

Although imaging and inverse scattering problems have been thoroughly studied during the last century, there is only a partial understanding of these complex problems. Most of the efforts have been placed on the development of efficient inversion algorithms and mathematical uniqueness results. In comparison, there are very few results and a limited knowledge about the information content in the inversion data. In this paper, we provide a mathematical framework for sensitivity analysis of antenna near-field imaging problems, based on the multipole expansion of the electromagnetic field and the Fisher information to quantify the quality of data. By exploiting this framework, a fundamental relation for accuracy and resolution is formulated based on the Cramer-Rao bound (CRB). The sensitivity analysis is illustrated using a relevant example with cylindrical measurement data.

Disputation

Nyckelord

  • Technology and Engineering
  • near-field imaging
  • estimation theory
  • inverse
  • problems
  • antenna theory
  • Fisher information

Övriga

Published
Yes
  • ISSN: 1053-587X

Box 117, 221 00 LUND
Telefon 046-222 00 00 (växel)
Telefax 046-222 47 20
lu [at] lu [dot] se

 

Fakturaadress: Box 188, 221 00 LUND
Organisationsnummer: 202100-3211
Om webbplatsen