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System and method for tracking a signal sourceA system for tracking moving signal sources is disclosed which is particularly adaptable for use in tracking stage performers. A miniature transmitter is attached to the person or object to be tracked and emits a detectable signal of a predetermined frequency. A plurality of detectors positioned in a preset pattern sense the signal and supply output information to a phase detector which applies signals representing the angular orientation of the transmitter to a computer. The computer provides command signals to a servo network which drives a device such as a motor driven mirror reflecting the beam of a spotlight, to track the moving transmitter.
Document ID
19780009197
Acquisition Source
Legacy CDMS
Document Type
Other - Patent
Authors
Mogavero, L. N. (NASA Headquarters Washington, DC United States)
Johnson, E. G. (NASA Headquarters Washington, DC United States)
Evans, J. M., Jr. (NASA Headquarters Washington, DC United States)
Albus, J. S. (NASA Headquarters Washington, DC United States)
Date Acquired
September 3, 2013
Publication Date
January 3, 1978
Subject Category
Space Communications, Spacecraft Communications, Command And Tracking
Report/Patent Number
Patent Number: NASA-CASE-HQN-10880-1
Patent Application Number: US-PATENT-APPL-SN-595254
Patent Number: US-PATENT-4,067,015
Accession Number
78N17140
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.
Patent
NASA-CASE-HQN-10880-1|US-PATENT-4,067,015
Patent Application
US-PATENT-APPL-SN-595254

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