Method and apparatus for mitigating multipath effects at a satellite signal receiver using a sequential estimation filter
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United States of America Patent
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Mar 12, 2013
Grant Date -
Jan 28, 2010
app pub date -
Jul 3, 2007
filing date -
Oct 27, 2005
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Abstract
A method and apparatus for mitigating multipath effects in a satellite signal receiver is described. In one example, measured pseudoranges are obtained from the satellite signal receiver to a plurality of satellites. For each measured pseudorange: an expected pseudorange is derived from a sequential estimation filter in the satellite signal receiver. The measured pseudorange and the expected pseudorange are differenced to compute a pseudorange residual. The measured pseudorange is applied to the sequential estimation filter only if the pseudorange residual is within a window.
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