发明名称 |
Adaptive spread spectrum FH-MFSK transmitter and receiver |
摘要 |
The present invention relates to a transmitter, a receiver and techniques for use in a frequency-hopping, multilevel frequency shift keyed (FH-MFSK) radio system which permits the selective concurrent transmission of one or two encoded frequencies per time slot of the transmitted sequence for improving reception at a receiver experiencing interference from the system transmitters above a predetermined interference threshold level. An alternative arrangement permits all transmitters and receivers to communicate with one another by transmitting a separate one of multiple frequencies in a separate one of an equal number of multiple frequency subbands forming the system frequency band during each time slot for providing flexibility in system design. Combinations of the two arrangements can also be employed.
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申请公布号 |
US4355399(A) |
申请公布日期 |
1982.10.19 |
申请号 |
US19810237540 |
申请日期 |
1981.02.23 |
申请人 |
BELL TELEPHONE LABORATORIES, INCORPORATED |
发明人 |
TIMOR, UZI |
分类号 |
H04B1/713;H04B7/216;H04J13/06;(IPC1-7):H04J6/00;H04B7/12 |
主分类号 |
H04B1/713 |
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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