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Satellite Communication - TikZ Figures

Satellite link: earth station A transmits an uplink; the transponder relays a downlink to earth station B
Fig: Satellite link: earth station A transmits an uplink; the transponder relays a downlink to earth station B
Concentric orbit altitudes: LEO, MEO and GEO around the Earth
Fig: Concentric orbit altitudes: LEO, MEO and GEO around the Earth
Kepler's laws: elliptical orbit with Earth at a focus and equal areas swept in equal times (left); the linear T^2-a^3 relation (right)
Fig: Kepler's laws: elliptical orbit with Earth at a focus and equal areas swept in equal times (left); the linear T^2-a^3 relation (right)
Bent-pipe transponder: receive antenna LNA frequency converter channel filter HPA transmit antenna. A regenerative transponder additionally demodulates and remodulates
Fig: Bent-pipe transponder: receive antenna LNA frequency converter channel filter HPA transmit antenna. A regenerative transponder additionally demodulates and remodulates
Earth station: transmit chain (codec-conv) and receive chain (LNA-conv) sharing a duplexer, dish, tracking and monitor/control
Fig: Earth station: transmit chain (codec-conv) and receive chain (LNA-conv) sharing a duplexer, dish, tracking and monitor/control
Spin versus three-axis stabilization and the closed-loop az/el tracking servo
Fig: Spin versus three-axis stabilization and the closed-loop az/el tracking servo
VSAT topologies: star (remotes reach the hub in two hops) and mesh (remotes communicate directly in one hop)
Fig: VSAT topologies: star (remotes reach the hub in two hops) and mesh (remotes communicate directly in one hop)
VSAT path: user IDU ODU (BUC/LNB/dish) satellite hub or remote VSAT
Fig: VSAT path: user IDU ODU (BUC/LNB/dish) satellite hub or remote VSAT
Link-budget chain: uplink EIRP and losses to the satellite G/T and transponder, then downlink EIRP and losses to the earth-station G/T, combined as C/N_0
Fig: Link-budget chain: uplink EIRP and losses to the satellite G/T and transponder, then downlink EIRP and losses to the earth-station G/T, combined as C/N_0