Interlaced limb scanning method
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United States of America Patent
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Jan 11, 2011
Grant Date -
N/A
app pub date -
May 30, 2008
filing date -
May 31, 2007
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Abstract
A method for remote atmospheric sensing. A sensor is provided on a moving platform above earth, the sensor including a plurality of fields of regard along the orbit, each field of regard of the plurality of fields of regard comprising a respective first subscan and a respective second subscan. The sensor is slewed to, and sampling an atmospheric region at, a respective first plurality of lines-of-sight to generate the respective first subscan and slewing the sensor to, and sampling the atmospheric region at, a respective second plurality of lines-of-sight to generate the respective, second subscan, the respective first subscan comprising a plurality of first subscan samples at the respective first plurality of lines-of-sight of the atmospheric region, the respective second subscan comprising a plurality of second subscan samples at the respective second plurality of lines-of-sight of the atmospheric region. An interlaced limb scan is generated for the each field of regard by interleaving at least one of the first subscan samples between at least two of the second subscan samples. Two-dimensional tomographic retrieval is applied to the interlaced limb scan to determine at least one of density, temperature, and chemical composition data of the atmospheric region.
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