Non-Terrestrial

Direct To Device Direct To Device is a connectivity model in which a network reaches a user device without relying on a local access intermediary. It is used to extend service coverage and… Concept/Framework Doppler Compensation Doppler Compensation is the adjustment of frequency or timing to counteract Doppler shift caused by relative motion between transmitter and receiver. Operations Downconverter Downconverter is a frequency conversion stage that shifts a signal from a higher frequency to a lower frequency for reception or processing by mixing the incoming RF signal with a… Hardware Downlink Power Control Downlink Power Control is the adjustment of transmit power on a downlink to maintain service quality or reduce interference. It is used to balance coverage and efficiency. Operations Dynamic Spectrum Access A set of techniques and regulatory frameworks that allocate and reallocate radio spectrum access in real time based on actual usage and interference conditions, rather than through fixed, exclusive, long-term… Concept/Framework Earth Observation Earth Observation is the collection of data about the Earth using remote sensing platforms such as satellites or aircraft to support measurement, mapping, and monitoring. Concept/Framework Earth-Fixed Beam A satellite payload beam-steering technique in which onboard beam-steering continuously repoints a spot beam to compensate for the satellite's orbital motion, holding the beam's ground footprint — and therefore the… Concept/Framework Earth-Moving Beam A satellite payload beam architecture in which a spot beam points in a fixed direction relative to the satellite itself, without continuous onboard steering to compensate for orbital motion, causing… Concept/Framework EIRP EIRP is the equivalent radiated power that would be produced if an isotropic antenna radiated the same field strength in the reference direction. It is calculated from transmitter power, antenna… Concept/Framework Electric Propulsion Electric Propulsion is a propulsion method that uses electrical energy to accelerate propellant and produce thrust. It converts electrical power into directed motion. Hardware