Method and Apparatus for Precision Azimuth Measurement
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United States of America Patent
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Issued Date -
Apr 8, 2010
app pub date -
Oct 1, 2009
filing date -
Oct 1, 2008
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Abandoned
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Abstract
Method and apparatus for precise measurement of azimuth. An angular rate sensor is rotated so its sensitive axis periodically aligns with the horizontal component of the earth's spin rate (north). A preferably sinusoidal signal is analyzed with respect to the relative angle of the sensor and a desired direction in order to determine the azimuth of that direction.
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