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Back to: "B"back scatter
- Definição1
- (1) A form of ionospheric propagation of electromagnetic waves via the E and F layers. These layers are highly ionized and have properties of reflecting electromagnetic waves back to the earth. Normally, almost all electromagnetic signals are returned to the earth at roughly equivalent angles of incidence. However, some amount of electromagnetic energy is scattered in all directions. Some energy may be reflected back toward the transmitting station into the skip zone. A receiving station within this skip zone is thus able to receive the transmission. (2) In radar, the portion of the microwave energy scattered by the terrain surface directly back toward the antenna.
- Fonte1
- KUMAR, Bharat (ed.). An illustrated dictionary of aviation. New York: McGraw-Hill, c2005. 752 p.
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