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专利名称:GNSS SIGNAL PROCESSING METHOD,
POSITIONING METHOD, GNSS SIGNALPROCESSING PROGRAM, POSITIONINGPROGRAM, GNSS SIGNAL PROCESSINGDEVICE, POSITIONING DEVICE, AND MOBILETERMINAL
发明人:NAGANO Takeshi申请号:EP11877304.3申请日:20111214公开号:EP2793051B1公开日:20161026
摘要:A demodulation unit (13) corresponding to a GNSS signal processing deviceincludes an operator (33). The operator (33) selects an error detecting method based onsigns of an early differential value ”CV E and a late differential value ”CV L . Theoperator (33) calculates an error detection value ”Ä by using the selected errordetecting method. A code phase range where an error detection value is not 0 is widewith a first error detecting method, and the code phase range where an error detectionvalue is not 0 is narrow with a second error detecting method. Immediately aftercapturing a GNSS signal, a code phase difference between the GNSS signal and a promptreplica signal S RP is large, and signs of the early differential value ”CV E and the latedifferential value ”CV L are different from each other. In this case, the first errordetecting method is used. As the code phase is driven, the code phase differencebetween the GNSS signal and the prompt replica signal S RP becomes smaller, and the
signs of the early differential value ”CV E and the late differential value ”CV L becomethe same. In this case, the second error detecting method is used.
申请人:FURUNO ELECTRIC CO
地址:JP
国籍:JP
代理机构:Williams, Michael Ian
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