发明名称 |
Burst communications method and apparatus |
摘要 |
A transmitter (400) offsets the transmission time and frequency of a burst transmission such that uncertainties in reception time and reception frequency are reduced. The transmitter includes an ephemeris store (454) that includes ephemeris data for one or more possible intended receivers (130). Orbits of possible intended receivers are propagated, and an intended receiver is selected. Transmission time offsets are generated as a function of transmitter location and intended receiver location. Transmission frequency offsets are substantially equal to a Doppler frequency derived from the transmitter velocity and the intended receiver velocity. Guard times and guard bands are reduced in size, resulting in greater available communications bandwidth and simpler receiver designs.
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申请公布号 |
US2002094781(A1) |
申请公布日期 |
2002.07.18 |
申请号 |
US20020037929 |
申请日期 |
2002.01.04 |
申请人 |
WRESCHNER KENNETH SOLOMON;CLELLAND ERIC JAY |
发明人 |
WRESCHNER KENNETH SOLOMON;CLELLAND ERIC JAY |
分类号 |
H04B7/212;(IPC1-7):H04B1/10 |
主分类号 |
H04B7/212 |
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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