Estimation of direction of arrival using multipath on array platforms

Marija M. Nikolic, Arye Nehorai, Antonije R. Djordjevic

Research output: Contribution to journalArticlepeer-review

14 Scopus citations


We demonstrate that the utilization of the diffraction by antenna platforms increases the effective array aperture. We conduct the analysis on a realistic model of an airborne platform and use the Cramer-Rao bound to assess the level of improvement due to the presence of the platform. We show that the exploitation of the multipath enables us to resolve both azimuth and elevation with uniform linear arrays at single-frequency measurements. By using a uniform linear array of monopoles mounted on a metallic plate, we verify the results experimentally.

Original languageEnglish
Article number6192305
Pages (from-to)3444-3454
Number of pages11
JournalIEEE Transactions on Antennas and Propagation
Issue number7
StatePublished - 2012


  • Antenna arrays
  • DOA estimation
  • antenna platforms
  • multipath


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