Pulse or digital communications – Repeaters – Testing
Patent
1992-05-11
1993-08-03
Gregory, Bernarr E.
Pulse or digital communications
Repeaters
Testing
380 33, 380 34, 375 3, 375 4, 375 99, 375102, 455 111, 455 121, 455 131, 455 65, 455303, H04L 2730, H04L 2520, H04L 2552, H04B 717
Patent
active
052336263
ABSTRACT:
A repeater diversity spread spectrum communication system provides substantially fade free communications between a transmitter (1) and a receiver (7). A transmitted signal is relayed through a plurality of linear communications repeaters (3-6) that produce copies of the transmitted signal, the copies each arriving through an independently fading signal path. The transmitter and/or the receiver may be mounted upon a mobile platform, and the plurality of repeaters may be terrestrial, or may be provided in satellites in low earth orbit or in geosynchronous earth orbit. The receiver processes the received signal copies to equalize them to one another in delay, frequency, and phase, and then combines the multiple received and equalized signal copies to produce a composite signal having a greatly reduced fading depth.
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Gregory Bernarr E.
Space Systems Loral, Inc.
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