Extended-aperture spatial diversity & polarizational diversity using a sparse array of electric dipoles or magnetic loops

Michael D. Zoltowski, Kainam Thomas Wong

Research output: Journal article publicationConference articleAcademic researchpeer-review

16 Citations (Scopus)


A novel eigenstructure scheme of extended-aperture spatial diversity and polarizational diversity is herein proposed for 2D arrival angle estimation. This innovational method involves uniformly spaced triads (or pairs) of electric dipoles or magnetic loops, spaced much farther apart than a half-wavelength. An FSPRIT-based step produces arrival angle estimates that suffer cyclic ambiguity due to the extended spacing. Then, a closed-form integer search is performed over a MUSIC null spectrum for all finite number of possible direction cosines in the cyclic ambiguity, using the aforementioned cyclically ambiguous estimates. This approach produces highly accurate, yet unambiguous, azimuth and elevation angle estimates. This novel method facilitates (1) multipath de-correlation (independent fading), (2) coherent summation of multipaths from the same source, and (3) down-link beamforming from the base-station to the mobile.
Original languageEnglish
Pages (from-to)1163-1167
Number of pages5
JournalIEEE Vehicular Technology Conference
Publication statusPublished - 1 Jan 1997
Externally publishedYes
EventProceedings of the 1997 47th IEEE Vehicular Technology Conference. Part 1 (of 3) - Phoenix, AZ, United States
Duration: 4 May 19977 May 1997

ASJC Scopus subject areas

  • Electrical and Electronic Engineering

Cite this