Pulse or digital communications – Repeaters – Testing
Patent
1992-05-08
1994-05-10
Barron, Jr., Gilberto
Pulse or digital communications
Repeaters
Testing
380 34, 380 48, 342 18, H04B 1500, H04L 2726, G01S 736
Patent
active
053115414
ABSTRACT:
A frequency agile spread spectrum radio system which is capable of efficient frequency re-use and frequency sharing. The receiver adaptively learns which frequencies to avoid. The transmitter sends redundant transmissions on widely separated pseudo-random carrier frequencies to overcome jammed channels. A coded preamble is used to provide a greatly enhanced hybrid form of Time Division Multiple Access/Frequency Division Multiple Access for co-existence and frequency re-use with nearby systems. Anti-jam margins of 60 to 90 dB can be inexpensively achieved, far exceeding that of traditional direct sequence systems.
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Axonn Corporation
Barron Jr. Gilberto
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