发明名称 |
Method and system for processing positioning signals in a stand-alone mode |
摘要 |
A method for processing positioning signals in a ranging receiver in a stand-alone mode is provided. The method includes collecting pseudorange samples from positioning signals received at the ranging receiver from a plurality of satellites. The pseudorange samples comprise message data modulation. Each satellite has an associated Gold code. A previously determined carrier frequency offset (CFO) is selected from a plurality of directly extracted CFOs. The pseudorange samples are compensated for the selected CFO. The message data modulation is removed from the pseudorange samples. The pseudorange samples are stacked for each satellite. The Gold code associated with each satellite is correlated to generate a pseudorange time sequence for the satellite. A determination is made regarding whether an adequate correlation peak exists in each pseudorange time sequence. A pseudorange is determined for the ranging receiver based on the correlation peaks when an adequate correlation peak exists in each pseudorange time sequence.
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申请公布号 |
US6628234(B2) |
申请公布日期 |
2003.09.30 |
申请号 |
US20010908011 |
申请日期 |
2001.07.18 |
申请人 |
FAST LOCATION.NET, LLC |
发明人 |
JANDRELL LOUIS HENRY MARTIN |
分类号 |
G01S19/25;G01S1/00;G01S5/00;G01S19/06;G01S19/46;(IPC1-7):G01S5/02;H04B7/185 |
主分类号 |
G01S19/25 |
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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