difference in depth modulation

difference in depth modulation
разность глубин модуляции

English-Russian scientific dictionary. 2008.

Смотреть что такое "difference in depth modulation" в других словарях:

  • Difference in the depth of modulation — The difference in the depth of modulation or DDM is used by instrument landing systems in conjunction with the associated airborne receiving equipment to define a position in airspace.[1] DDM is usually expressed in percentage but may also be… …   Wikipedia

  • Difference in the Depth of Modulation — or DDM is a method used by the Instrument Landing System in conjunction with the associated airborne receiving equipment to define a position in airspace. [ [http://stinet.dtic.mil/oai/oai?verb=getRecord metadataPrefix=html identifier=ADA138301… …   Wikipedia

  • Difference due to Memory — (Dm) indexes differences in neural activity during the study phase of an experiment for items that subsequently are remembered compared to items that are later forgotten. It is mainly discussed as an event related potential (ERP) effect that… …   Wikipedia

  • Depth of field — The area within the depth of field appears sharp, while the areas in front of and beyond the depth of field appear blurry …   Wikipedia

  • Space modulation — is a radio Amplitude Modulation technique used in Instrument Landing Systems that incorporates the use of multiple antennas fed with various radio frequency powers and phases to create different depths of modulation within airspace. This… …   Wikipedia

  • Delta-sigma modulation — Delta sigma (ΔΣ; or sigma delta, ΣΔ) modulation is a method for encoding high resolution or analog signals into lower resolution digital signals. The conversion is done using error feedback, where the difference between the two signals is… …   Wikipedia

  • Pulse-code modulation — PCM redirects here. For other uses, see PCM (disambiguation). Pulse code modulation (PCM) is a method used to digitally represent sampled analog signals. It is the standard form for digital audio in computers and various Blu ray, Compact Disc and …   Wikipedia

  • Audio bit depth — In digital audio, bit depth describes the number of bits of information recorded for each sample. Bit depth directly corresponds to the resolution of each sample in a set of digital audio data. Common examples of bit depth include CD audio, which …   Wikipedia

  • Beam Approach Beacon System — (or BABS) is an automatic RADAR landing system developed in the early 1940 s.It is a responder (or transponder) mounted in a Hillman van and placed at the end of the runway. In some cases fixed sites were installed and by the mid 1950 s Standard… …   Wikipedia

  • DDM — abbr. comp. Distributed Data Management comp. Design, Drafting and Manufacturing tech. Difference in Depth of Modulation …   Dictionary of English abbreviation

  • localizer course — The locus of points, in any given horizontal plane, at which the DDM (difference in depth of modulation) is zero …   Aviation dictionary


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