NASA Logo

NTRS

NTRS - NASA Technical Reports Server

Back to Results
An analytical solution to obtain the optimum source location using multiple direction finders on a spherical surfaceAn analytical solution is presented for determining the optimum location of a radiating source on the surface of a sphere, given multiple bearings. The bearings are assumed to have small errors of the order of 0-10 deg. The optimum location is found by minimizing the sum of the squares of the perpendicular great-circle distances from the source to the bearing lines. This is achieved analytically through an eigenvalue approach, rather than the usual iterative, numerical approach. Bearings of different weight are taken into account by approximating the distance from each direction finder to the source. The result is general and may have wide application. Since it is simple and nearly as fast as the triangulation technique for source location, it is now used in the SUNY-Albany East Coast Lightning Detection Network to compute the optimum location for lightning in real time.
Document ID
19880025778
Acquisition Source
Legacy CDMS
Document Type
Reprint (Version printed in journal)
Authors
Orville, Richard E., Jr.
Date Acquired
August 13, 2013
Publication Date
September 20, 1987
Publication Information
Publication: Journal of Geophysical Research
Volume: 92
ISSN: 0148-0227
Subject Category
Meteorology And Climatology
Accession Number
88A13005
Funding Number(s)
CONTRACT_GRANT: NSF ATM-84-00207
CONTRACT_GRANT: NAS8-33380
Distribution Limits
Public
Copyright
Other

Available Downloads

There are no available downloads for this record.
No Preview Available