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terrain model

См. также в других словарях:

  • ITU Terrain Model — The ITU Terrain Loss Model is a radio propagation model that provides a method to predict the median path loss for a telecommunication link. Developed on the basis of diffraction theory, this model predicts the path loss as a function of the… …   Wikipedia

  • Terrain — Terrain, or relief, is the third or vertical dimension of land surface. When relief is described underwater, the term bathymetry is used. Topography has recently become an additional synonym, though in many parts of the world it retains its… …   Wikipedia

  • Model 24 grenade — German stick grenade Model 24 The Model 24 Stielhandgranate was the standard hand grenade of the German Army from the end of World War I until the end of World War II. The very distinctive appearance led to its being called a stick grenade , or a …   Wikipedia

  • terrain-awareness warning system — A system using an electronic map that provides a warning of higher terrain in the vicinity of the aircraft. The TAWS is a computer based system providing the flight crew with visual and acoustic alerts about the unintended approach to the terrain …   Aviation dictionary

  • Digital elevation model — 3D rendering of a DEM of Tithonium Chasma on Mars A digital elevation model is a digital model or 3 D representation of a terrain s surface commonly for a planet (including Earth), moon, or asteroid created from terrain elevation data. There is… …   Wikipedia

  • Radio propagation model — A radio propagation model, also known as the Radio Wave Propagation Model or the Radio Frequency Propagation Model , is an empirical mathematical formulation for the characterization of radio wave propagation as a function of frequency, distance… …   Wikipedia

  • Egli Model — is a terrain model for radio frequency propagation. This model predicts the total path loss for a point to point link. Typically used for Line of Sight transmission, this model provides the path loss as a single quantity. Applicable to/under… …   Wikipedia

  • Longley–Rice model — The Longley–Rice (LR) radio propagation model is a method for predicting median path loss for a telecommunication link in the frequency range of 20 MHz to 20 GHz.LR is also known as irregular terrain model (ITM). It was created for the needs of… …   Wikipedia

  • Digital Elevation Model — Digitales Geländemodell der Tithonium Chasma auf dem Mars Ein Digitales Geländemodell (DGM) bzw. Digitales Höhenmodell (DHM) ist ein digitales, numerisches Modell der Geländehöhen und formen. Oft werden auch die englischen Begriffe Digital… …   Deutsch Wikipedia

  • Okumura Model — The Okumura model for Urban Areas is a Radio propagation model that was built using the data collected in the city of Tokyo, Japan. The model is ideal for using in cities with many urban structures but not many tall blocking structures. The model …   Wikipedia

  • Martian chaos terrain — Contents 1 Chaos terrain on Mars 2 Locations 3 Theories for formation 3.1 Melting of buried ice 3.2 …   Wikipedia

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