Magneto-Quasistatic Tracking of an American Football: A Goal-Line Measurement [Measurements Corner]

Author

Arumugam, Darmindra D. ; Griffin, J.D. ; Stancil, D.D. ; Ricketts, David S.

Author_Institution

Jet Propulsion Lab., California Inst. of Technol., Pasadena, CA, USA

Volume

55

Issue

1

fYear

2013

fDate

Feb. 2013

Firstpage

138

Lastpage

146

Abstract

An American football was tracked using a long-range magneto-quasistatic position and orientation measurement system. A low-weight emitter that emitted a low-frequency quasistatic magnetic field was embedded within an American football. The emitter weighed a total of 26.5 g, which was within the manufacturing tolerance of an American football, and did not alter the dynamics of the ball. Measurements of a person carrying the football along the goal line of an American football field are described, along with a description of the construction of the magneto-quasistatic tracking system. The technique demonstrated measurements with a distance accuracy of 15 cm and an azimuthal orientation accuracy of 2.45° for measurements conducted along the goal line of an American football field.

Keywords

image motion analysis; object tracking; position measurement; radionavigation; American football field; azimuthal orientation accuracy; distance accuracy; goal-line measurement; long-range magneto-quasistatic position measurement system; low-frequency quasistatic magnetic field; low-weight emitter; magneto-quasistatic tracking system; orientation measurement system; Antenna measurements; Electromagnetic fields; Magnetic field measurement; Magnetic resonance imaging; Optical device fabrication; Optical variables measurement; Radio frequency; Receivers; Tracking; Electromagnetic fields; football; magneto-quasistatics; radio position measurement; radio tracking;

fLanguage

English

Journal_Title

Antennas and Propagation Magazine, IEEE

Publisher

ieee

ISSN

1045-9243

Type

jour

DOI

10.1109/MAP.2013.6474504

Filename

6474504