H - Electricity – 04 – B
Patent
H - Electricity
04
B
363/2
H04B 7/185 (2006.01)
Patent
CA 1269462
TWO-HOP COLLOCATED SATELLITE COMMUNICATIONS SYSTEM ABSTRACT OF THE DISCLOSURE A two-hop communications system utilizing two collocated spacecraft (Se and Sw) and two remote intersatellite exchange (RISE) means (Re and Rw) provides for communications between ground stations located in two or more defined subregions. Each satellite includes wide band transponders for relaying ground station transmissions to the RISEs. The RISEs convert first hop frequency division multiplexed (FDM) signals to time division multiplexed (TDM) for the second hop. Signals are coded by frequency, polarization and direction so as to avoid loss of bandwidth due to the two-hop approach.
495014
Pressman Leeor
Rosen Harold A.
Thompson James D.
Hughes Aircraft Company
Sim & Mcburney
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