发明名称 |
RECEIVED SIGNAL DETERMINATION METHOD, POSITIONING DEVICE, AND ELECTRONIC INSTRUMENT |
摘要 |
A received signal determination method includes: receiving a positioning signal; performing correlation calculations on the received positioning signal using a code replica of one spreading code among the plurality of spreading codes; selecting a total peak value and a remote peak value, the total peak value being a first maximum correlation value among correlation values obtained by the correlation calculations, and the remote peak value being a second maximum correlation value among correlation values apart from a phase of the total peak value by a phase equal to or greater than a given phase; changing a threshold value condition for the total peak value based on the remote peak value; and determining whether or not the received positioning signal is spread-modulated with the one spreading code by determining whether or not the total peak value satisfies the threshold value condition.
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申请公布号 |
US2009129449(A1) |
申请公布日期 |
2009.05.21 |
申请号 |
US20080268745 |
申请日期 |
2008.11.11 |
申请人 |
SEIKO EPSON CORPORATION |
发明人 |
GOBARA NAOKI |
分类号 |
H04B1/707;G01S19/30;G01S19/37 |
主分类号 |
H04B1/707 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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