发明名称 |
High efficiency signaling with minimum spacecraft hardware |
摘要 |
A method is disclosed for efficiently transmitting large numbers of data channels through a satellite (24). The method uses a block encoder (28) that encodes the data channels with a block code to produce an encoded uplink data stream. A modulator (30) modulates the encoded uplink data stream. A transmit antenna (32) then sends the resultant modulated uplink data stream (34) to the satellite (24). The satellite uses a satellite demodulator (48) and a switch (50) to produce an internal data stream consisting of selected data channels in the uplink data stream (34). The internal data stream is fed into a convolutional encoder (52). The output of the convolutional encoder (52) is connected to a satellite modulator (54). The satellite transmit antenna (56) then sends the resultant modulated downlink data stream (58) to a receiver.
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申请公布号 |
US6049566(A) |
申请公布日期 |
2000.04.11 |
申请号 |
US19970900039 |
申请日期 |
1997.07.24 |
申请人 |
TRW INC. |
发明人 |
SAUNDERS, OLIVER W.;DEVELET, JR., JEAN A.;WISWELL, ERIC R. |
分类号 |
H04B7/216;(IPC1-7):H04B1/38;H04B7/185;H04L23/00 |
主分类号 |
H04B7/216 |
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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