EATM glossary of terms 歐洲空管管理術(shù)語詞典

時(shí)間：2011-08-27 23:38來源：藍(lán)天飛行翻譯 作者：航空 點(diǎn)擊：次

See also Interrogation Side Lobe Suppression. Side Lobes (Antenna) Lobes of the radiation pattern of an antenna, which are not part of the main or principal beam. Radar systems can have sufficient sensitivity via side lobes for successful detection of aircraft (particularly for SSR, but also for PSR). Special precautions are necessary to protect against these false plots. SIGMET Information Information issued by a meteorological watch office concerning the occurrence or expected occurrence of specified en-route weather phenomena which affect the safety of aircraft operations. Signal-Derived Position Error That part of the horizontal position error at the user location attributable to signal-in-space errors from the GNSS control segment, space segment and propagation effects; does not include receiver-induced errors. Signal-Derived Range Accuracy Measured pseudorange error on a particular satellite as observed by a ground monitor station. SRA includes the signal of the error. Signal-to-Noise Ratio A ratio of magnitude of a desired signal to the magnitude of the noise received with it. Significant Point A specified geographical location used in defining an ATS route or the flight path of an aircraft and for other navigation and ATS purposes. Significant Repositioning A repositioning of a sequenced aircraft that involves more than an accepted (parameter) number of changes. Silent Co-ordination See Active Mode of Real-Time Civil/Military Co-ordination. Simulation Conducting dynamic experiments on a model instead of on the real system.

Simulation The provision of knowledge, skills and attitudes by means of a representation of air traffic responding to any student action as real air traffic. It always includes briefing, tutoring and debriefing. Simulator A device that presents the student with a representation of the important features of the real situation and reproduces the operational conditions under which the student can practice real-time tasks directly. Simulator for Multi-radar Analysis for Realistic T An on-line software tool in SASS-C which is capable of generating realistic aircraft trajectories and the corresponding radar plot data from a user defined multi-radar ATC environment. Single Homed End Routing Domain An ERD that is in communication with one other Routing Domain only. Situation Interview A specific type of structured and standardised interview based on hypothetical situations. Situational Awareness 1- The perception of the elements in the environment within a volume of time and space, comprehension of their meaning and projection of their status in the near future (Endsley, 1995).
2- This also means the continuous extraction of environmental information and the integration of this information with previous knowledge to form a coherent MP and the use of that picture in directing further perception and anticipating future events.
Skewness Refers to the symmetry or asymmetry of the frequency distribution (Ferguson, 1976). Skill 1- Competence to perform the work required by the job. (SIOP, 1987).

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