Closed-form direction-finding with arbitrarily spaced electromagnetic vector-sensors at unknown locations

Kainam Thomas Wong; Michael D. Zoltowski

doi:10.1109/ICASSP.1998.681445

Closed-form direction-finding with arbitrarily spaced electromagnetic vector-sensors at unknown locations

Kainam Thomas Wong, Michael D. Zoltowski

Research output: Chapter in book / Conference proceeding › Conference article published in proceeding or book › Academic research › peer-review

22 Citations (Scopus)

Abstract

This paper introduces a novel closed-form ESPRIT-based algorithm for multi-source direction finding using arbitrarily spaced electromagnetic vector-sensors whose locations need not be known. The electromagnetic vector-sensor, already commercially available, consists of six co-located but diversely polarized antennas separately measuring all six electromagnetic-field components of an incident wavefield. In this novel algorithm, ESPRIT exploits the non-spatial inter-relations among the six unknown electromagnetic-field components of each source and produces from the measured data a set of eigenvalues, from which the source's electromagnetic-field vector may be estimated to within a complex scalar. Application of a vector cross-product operation to this ambiguous electromagnetic-held vector estimate: produces an unambiguous estimate of that source's normalized Poynting-vector, which contains as its components the source's Cartesian direction-cosines. Monte Carlo simulation results verify the efficacy and versatility of this innovative scheme.

Original language	English
Title of host publication	Proceedings of the 1998 IEEE International Conference on Acoustics, Speech and Signal Processing, ICASSP 1998
Pages	1949-1952
Number of pages	4
Volume	4
DOIs	https://doi.org/10.1109/ICASSP.1998.681445
Publication status	Published - 1 Dec 1998
Externally published	Yes
Event	1998 23rd IEEE International Conference on Acoustics, Speech and Signal Processing, ICASSP 1998 - Seattle, WA, United States Duration: 12 May 1998 → 15 May 1998

Conference

Conference	1998 23rd IEEE International Conference on Acoustics, Speech and Signal Processing, ICASSP 1998
Country/Territory	United States
City	Seattle, WA
Period	12/05/98 → 15/05/98

ASJC Scopus subject areas

Software
Signal Processing
Electrical and Electronic Engineering

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10.1109/ICASSP.1998.681445

Cite this

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abstract = "This paper introduces a novel closed-form ESPRIT-based algorithm for multi-source direction finding using arbitrarily spaced electromagnetic vector-sensors whose locations need not be known. The electromagnetic vector-sensor, already commercially available, consists of six co-located but diversely polarized antennas separately measuring all six electromagnetic-field components of an incident wavefield. In this novel algorithm, ESPRIT exploits the non-spatial inter-relations among the six unknown electromagnetic-field components of each source and produces from the measured data a set of eigenvalues, from which the source's electromagnetic-field vector may be estimated to within a complex scalar. Application of a vector cross-product operation to this ambiguous electromagnetic-held vector estimate: produces an unambiguous estimate of that source's normalized Poynting-vector, which contains as its components the source's Cartesian direction-cosines. Monte Carlo simulation results verify the efficacy and versatility of this innovative scheme.",

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Wong, KT & Zoltowski, MD 1998, Closed-form direction-finding with arbitrarily spaced electromagnetic vector-sensors at unknown locations. in Proceedings of the 1998 IEEE International Conference on Acoustics, Speech and Signal Processing, ICASSP 1998. vol. 4, 681445, pp. 1949-1952, 1998 23rd IEEE International Conference on Acoustics, Speech and Signal Processing, ICASSP 1998, Seattle, WA, United States, 12/05/98. https://doi.org/10.1109/ICASSP.1998.681445

Closed-form direction-finding with arbitrarily spaced electromagnetic vector-sensors at unknown locations. / Wong, Kainam Thomas; Zoltowski, Michael D.
Proceedings of the 1998 IEEE International Conference on Acoustics, Speech and Signal Processing, ICASSP 1998. Vol. 4 1998. p. 1949-1952 681445.

Research output: Chapter in book / Conference proceeding › Conference article published in proceeding or book › Academic research › peer-review

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Closed-form direction-finding with arbitrarily spaced electromagnetic vector-sensors at unknown locations

Abstract

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