发明名称 |
Radiation-hardened fast acquistion/weak signal tracking system and method |
摘要 |
A global positioning system (GPS) receiver and method of acquiring and tracking GPS signals comprises an antenna adapted to receive GPS signals; an analog radio frequency device operatively connected to the antenna and adapted to convert the GPS signals from an analog format to a digital format; a plurality of GPS signal tracking correlators operatively connected to the analog RF device; a GPS signal acquisition component operatively connected to the analog RF device and the plurality of GPS signal tracking correlators, wherein the GPS signal acquisition component is adapted to calculate a maximum vector on a databit correlation grid; and a microprocessor operatively connected to the plurality of GPS signal tracking correlators and the GPS signal acquisition component, wherein the microprocessor is adapted to compare the maximum vector with a predetermined correlation threshold to allow the GPS signal to be fully acquired and tracked.
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申请公布号 |
US2006082496(A1) |
申请公布日期 |
2006.04.20 |
申请号 |
US20050239458 |
申请日期 |
2005.09.20 |
申请人 |
U.S.A. AS REPRESENTED BY THE ADMINISTRATOR OF THENATIONAL AERONAUTICS AND SPACE ADMINISTRATION |
发明人 |
WINTERNITZ LUKE;BOEGNER GREGORY J.;SIROTZKY STEVE |
分类号 |
G01S19/09;G01S19/39 |
主分类号 |
G01S19/09 |
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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