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Ground-Based Infrastructure: Innovation. VLBI: High slew rates (> 5 deg/s) 1-3 small telescopes at a site Continuous frequency range (2-18 GHz) . VLBI Twin Telescope (Wettzell) . SLR: kHz laser technology 2 frequency systems Higher quantum efficiency.
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Ground-Based Infrastructure: Innovation VLBI: • High slew rates (> 5 deg/s) • 1-3 small telescopes at a site • Continuous frequency range (2-18 GHz) VLBI Twin Telescope (Wettzell) SLR: • kHz laser technology • 2 frequency systems • Higher quantum efficiency Galileo Experimental Sensor Station (GESS) kHz Laser: Lageos Spin (Graz) GNSS: • GPS, Glonass, Galileo, Compass, … • Sampling > 10 Hz • Real-time • 3 antennas/receivers DORIS: • 3rd generation DORIS systems DORIS Beacon (Thule)