发明名称 Positioning method, positioning device, and electronic instrument
摘要 A positioning method that performs current position calculations and outputs a positioning result position includes searching for satellite signals transmitted from positioning satellites to acquire satellites, combining satellites among the acquired satellites to extract satellite sets used for positioning, performing first positioning calculations on each calculation-target satellite set among the extracted satellite sets using the satellite signals transmitted from the acquired satellites included in the calculation-target satellite set, performing second positioning calculations on each calculation-target satellite set among the extracted satellite sets using the satellite signals transmitted from the acquired satellites that are included in the calculation-target satellite set, but do not include a low-elevation-angle satellite, and determining whether or not a positioning result obtained using the calculation-target satellite set is appropriate based on the difference between a position calculated by the first positioning calculations and a position calculated by the second positioning calculations, the elevation angle of the low-elevation-angle satellite satisfying a given low elevation angle condition, and determining the positioning result position from the positions calculated by the first positioning calculations on the satellite sets for which the positioning result has been determined to be appropriate.
申请公布号 US7928902(B2) 申请公布日期 2011.04.19
申请号 US20080255219 申请日期 2008.10.21
申请人 SEIKO EPSON CORPORATION 发明人 NAGAHARA MIKIO
分类号 G01S1/00;G01S19/22;G01S19/28;H04B7/185 主分类号 G01S1/00
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