Scanning polarized RF reference sources for angular orientation measurement for munitions and the like
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United States of America Patent
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May 21, 2013
Grant Date -
Dec 13, 2012
app pub date -
Dec 22, 2009
filing date -
Aug 2, 2007
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Abstract
A method for determining an angular orientation of a sensor relative to a source. The method including: amplitude modulating at least two synchronized polarized Radio Frequency (RF) carrier signals with a predetermined relationship between their amplitude modulation of their electric field components and their polarization states to provide a scanning polarized RF reference source with a desired scanning range, pattern and frequency; detecting the scanning polarized RF reference source at the sensor; and using peak detection or pattern matching analysis on a signal detected at the sensor to determine the angular orientation of the sensor relative to scanning polarized RF reference source.
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