Frequency estimator for aeronautical communication
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United States of America Patent
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Jan 2, 2018
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N/A
app pub date -
Apr 29, 2015
filing date -
Apr 30, 2014
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Abstract
A method and device are provided suited to estimating a frequency value for aeronautical communication between a first station and an airborne system moving in relation to the first station, the data being transmitted in the form of a succession of frames, a frame comprising at least one first header field of known data followed by one or more fields of unknown data, and having at least the following steps: Step 1: performance of a supervised correlation on the known data (300) of the header, and estimation of a first frequency range centered on a frequency ; Step 2: production of a blind correlation on at least all of the unknown data of a field of data, by looking for a correlation peak over the frequency range
+/−
, as determined in step 1, and by retaining of the frequency corresponding to the correlation peak.
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