| 摘要 |
PROBLEM TO BE SOLVED: To display an accurate position without being influenced by a multipath by reducing erroneous detection and non-detection of the multipath. SOLUTION: This positioning method includes: a step 201 of receiving orbit information and time information transmitted by a positioning satellite; steps 206 and 207 of calculating a pseudo distance between the positioning satellite and a receiver based on the received time information; a step of calculating the position of the positioning satellite based on the received orbit information and the time information; a step of calculating the current position of the receiver based on the calculated pseudo distance and the satellite position of the positioning satellite; a step of calculating an estimated position of the receiver; a step of calculating an estimated value of the pseudo distance based on the estimated position of the receiver and the satellite position of the positioning satellite; a step 208 of calculating an estimated observation error of the pseudo distance based on the difference between the pseudo distance and the estimated value of the pseudo distance; and steps 209 and 210 of determining presence of occurrence of a multipath based on a result obtained by dividing the estimated observation error by a standard deviation of the estimated observation error. COPYRIGHT: (C)2009,JPO&INPIT
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