Unwrapping of phase values at array antenna elements
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United States of America Patent
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May 3, 2011
Grant Date -
Sep 3, 2009
app pub date -
Oct 5, 2006
filing date -
Oct 6, 2005
priority date (Note) -
Expired
status (Latency Note)
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Abstract
A method and apparatus are described for the unwrapping of a set of phase values observed for an incoming signal on a phased array antenna. The difference between values observed on adjacent elements in the array forms a first data set. The differences between adjacent ordinates in the first data set forms a second data set. The values in the second data set are rounded to the nearest whole multiple of one complete cycle before the differencing process is reversed to provide the values (representing a whole number of complete cycles) which are added to the observed phase values to provide the unwrapped phase values.
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