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line of sight
- Definição1
- a) The straight line between two points. This line is in the place of the great circle but does not follow the contour of the earth. Radar and some forms of radio waves are capable of being received in the line of sight; b) The straight line between the eye of an observer and observed object or point. Also called an optical path; c) In radio, a direct propagation path that does not go below the radio horizon.
- Fonte1
- KUMAR, Bharat (ed.). An illustrated dictionary of aviation. New York: McGraw-Hill, c2005. 752 p.
- Fonte2
- INTERNATIONAL CIVIL AVIATION ORGANIZATION. Manual on testing of radio navigation aids. Fourth edition. Montreal, 2000. (Doc. 8071)
- Nota Adicional1
- Acronym in English: LOS.
- Nota Adicional2
- Information regarding this term is a result of researches developed by DECEA in cooperation with ANAC.
- Contexto
- The surrounding terrain is an important factor, however, as a ground reflection or a shadow effect will create loss-of-aircraft-return in the ground clutter on the display or loss of line-of-sight to the aircraft.
- Subárea
- Aeronautical Telecommunications
- Français
- ligne de visée