- ground propagation
- Техника: поверхностное распространение (радиоволн)
Универсальный англо-русский словарь. Академик.ру. 2011.
ground propagation
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Ground conductivity — refers to the electrical conductivity of the subsurface of the earth.Radio propagationGround conductivity is an extremely important factor in determining the field strength and propagation of surface wave (ground wave) radio transmissions. Low… … Wikipedia
propagation — propagational, adj. /prop euh gay sheuhn/, n. 1. the act of propagating. 2. the fact of being propagated. 3. multiplication by natural reproduction. 4. transmission or dissemination. [1400 50; late ME propagacyon < L propagation (s. of… … Universalium
Ground plane — In electrical engineering, a ground plane is an electrically conductive surface. Radio antenna theory In telecommunication, a ground plane structure or relationship exists between the antenna and another object, where the only structure of the… … Wikipedia
Radio propagation — is a term used to explain how radio waves behave when they are transmitted, or are propagated from one point on the Earth to another. [ H. P. Westman et al, (ed), Reference Data for Radio Engineers, Fifth Edition , 1968, Howard W. Sams and Co.,… … Wikipedia
Anomalous propagation — In Radio: Anomalous propagation includes different forms of electromagnetic wave propagation that are not encountered in a standard atmosphere. While technically the term includes propagation with larger losses than in standard atmosphere, in… … Wikipedia
Line-of-sight propagation — refers to electro magnetic radiation including light emissions traveling in a straight line. The rays or waves are diffracted, refracted, reflected, or absorbed by atmosphere and obstructions with material and generally cannot travel over the… … Wikipedia
List of radio propagation topics — This is a list of radio propagation terms. NOTOC A a index A index aa index active prominence active prominence region (APR) active region active surge region (ASR) active dark filament (ADF) AE index Air Force Geophysics Laboratory (AFGL) arch… … Wikipedia
Multipath propagation — This article is about the electromagnetic propagation phenomenon. For the computing storage term, see Multipath I/O. For the routing term, see Multipath Routing. In wireless telecommunications, multipath is the propagation phenomenon that results … 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
Plant propagation — is the process of artificially or naturally propagating (distributing or spreading) plants.exual propagation (seed)Seeds and spores can be used for reproduction (through eg sowing). Seeds are typically produced from sexual reproduction within a… … Wikipedia
Fruit tree propagation — is usually carried out through asexual reproduction by grafting or budding the desired variety onto a suitable rootstock. Perennial plants can be propagated either by sexual or vegetative means. Sexual reproduction occurs when male pollen from… … Wikipedia
