A B C D E F G H I J K L M N O P Q R S T U V W X Y


<< detect and avoid | difference in depth of modulation | digital elevation model >>

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.
Subárea
Aeronautical Telecommunications
Français
différence de taux de modulation