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 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 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 Emission Control Emission Control is the management of signal emission level, direction, timing, or pattern to reduce detectability or interference. Operations Ephemeris Ephemeris is the set of time-based position data used to determine the location of a satellite or celestial object. It supports tracking and navigation. Operations Equivalent Isotropically Radiated Power Equivalent Isotropically Radiated Power is the effective radiated power of a transmitter relative to an isotropic reference in a given direction. It combines output power and antenna gain. Concept/Framework