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Back to: "D"difference in depth of modulation
- Definição1
- In ILS, the percentage modulation depth of the larger signal, minus the percentage modulation depth of the smaller signal, divided by 100.
- Fonte1
- MULTILINGUAL aeronautical dictionary, or, dictionary aeronautique multilingue: english, french, spanish, dutch, greek, italian,portuguese, turkish. London, England: Technical Editing and reproduction Ltd, 1980. xx, 876 p. ISBN 92835016667
- Definição2
- The percentage modulation depth of the larger signal minus the percentage modulation depth of the smaller signal, divided by 100.
- Fonte2
- INTERNATIONAL CIVIL AVIATION ORGANIZATION. Annex 10 to the Convention on International Civil Aviation. Aeronautical Communications. Volume III. Communication Systems: Part I Digital Data Communication Systems; Part II Voice Communication Systems. 2nd ed. Montreal, 2007.
- Fonte3
- INTERNATIONAL CIVIL AVIATION ORGANIZATION. Manual on testing of radio navigation aids. Fourth edition. Montreal, 2000. (Doc. 8071)
- Nota adicional1
- Acronym in English: DDM.
- Nota adicional2
- Information regarding this term is a result of researches developed by DECEA in cooperation with ANAC.
- Contexto
- The interference thresholds for a wanted signal with a difference in depth of modulation (DDM) of 0.093 are: a change in the course deflection current of 7.5 mA (see Note 1), or the appearance of the flag, whichever occurs first.
- Subárea1
- Aeronautical Telecommunications
- Português
- diferença de profundidade de modulação