Methods of adjusting airborne geophysical measurements based on mapping instrument measurements
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United States of America Patent
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Apr 29, 2008
Grant Date -
Jan 27, 2005
app pub date -
Oct 11, 2002
filing date -
Oct 11, 2001
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Abstract
This invention concerns a method of making airborne geophysical measurements. Such measurements may be made from fixed or moving wing airplanes or dirigibles. The method comprises the following steps: taking first real time measurements from one, or more, geophysical instruments mounted in an aircraft to produce geophysical data related to the ground below that instrument. Taking second real time measurements from navigation and mapping instruments associated with or carried by the aircraft. Computing a background response of each geophysical instrument using the second real time measurements to take account of its time varying altitude, and the time varying topography of the ground below it. Adjusting an operating or data processing condition of each geophysical instrument using the respective background response and the instrument's attitude to enhance the performance of that instrument. And, adjusting the geophysical data output for that instrument having reduced effects resulting from variations in altitude, attitude and topography.
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