METHOD OF DETECTING MULTIPATH, GNSS RECEIVING APPARATUS , AND MOBILE TERMINAL
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United States of America Patent
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Issued Date -
Dec 20, 2012
app pub date -
Feb 23, 2011
filing date -
Feb 26, 2010
priority date (Note) -
Abandoned
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Abstract
An existence of multipath is detected accurately based on not only a C/No. A C/No (iv) of a reception signal, a pseudorange PR(iv), and a delta range DR(iv) are acquired (S101). First, as determination processing based on individual measurement values, thresholds are set thereto respectively, and the existence of multipath is detected (S102-S104). Next, as determination processing based on continuous values, an average value C/No(Av) and a standard deviation σC/No of the C/No, and an average value DV(Av) and a standard deviation σDV of the difference values are calculated, thresholds are similarly set thereto respectively, and the existence of multipath is determined (S105-S109). Then, if multipath is determined that it does not exist based on the individual measurement values and the continuous values, it is determined ultimately that multipath does not exist (S110).
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