发明名称 |
OPTIMIZED RECEIVE ANTENNA AND SYSTEM FOR PRECISION GPS-AT-GEO NAVIGATION |
摘要 |
A GPS-at-GEO system is provided that includes a receive antenna design that enables improved tracking of GPS space vehicle side-lobe signals. The receive antenna design is a conical mode helix antenna configured to produce a conical mode radiation pattern, which has zero gain at Nadir and higher gain in the side-lobe signal regions. The conical mode radiation pattern provides several advantages for GPS-at-GEO navigation applications. For example, this mode provides higher gain in the GPS space vehicle side-lobe signal regions for improved acquisition and tracking performance and lower gain at Nadir, providing reduced noise temperature and higher signal to noise ratio. |
申请公布号 |
EP2115899(A4) |
申请公布日期 |
2010.03.17 |
申请号 |
EP20080779544 |
申请日期 |
2008.01.09 |
申请人 |
LOCKHEED MARTIN CORPORATION |
发明人 |
LINDINGER, BERNARD, F.;MATTHEWS, JAMES, W.;GOODZEIT, NEIL, E. |
分类号 |
H01Q1/36;G01S1/00;H01Q1/28;H01Q11/08 |
主分类号 |
H01Q1/36 |
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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