- amplitude modulation system
- 调幅系统,调幅制
Medical Chinese dictionary (湘雅医学词典). 2013.
amplitude modulation system
Look at other dictionaries:
amplitude modulation — n. 1. the variation of the amplitude of a carrier wave in accordance with the signal being broadcast 2. a broadcasting system that uses this: Abbrev. AM: Cf. FREQUENCY MODULATION … English World dictionary
Amplitude modulation — Passband modulation v · d · e Analog modulation AM · … Wikipedia
Amplitude Modulation Signalling System — AMSS pour Amplitude Modulation Signalling System est un système de transmission numérique conçu pour ajouter une transmission à bas débit sur les signaux de radio analogique en modulation d amplitude (AM). Les fonctionnalités offertes par AMSS… … Wikipédia en Français
Amplitude modulation signalling system — The amplitude modulation signalling system (AMSS or the AM signalling system) is a digital system for adding low bit rate information to an analogue amplitude modulated broadcast signal in the same manner as the Radio Data System (RDS) for… … Wikipedia
amplitude modulation — noun Date: 1921 modulation of the amplitude of a radio carrier wave in accordance with the strength of the audio or other signal; also a broadcasting system using such modulation compare frequency modulation … New Collegiate Dictionary
amplitude modulation — /ˌæmplətjud mɒdʒəˈleɪʃən/ (say .ampluhtyoohd mojuh layshuhn) noun a system of radio transmission in which the carrier wave is modulated by changing its amplitude (distinguished from frequency modulation). Abbrev.: AM …
quadrature amplitude modulation — A modulation system involving phase and amplitude modulation of a carrier, used in microwave and satellite communication links … Dictionary of automotive terms
Amplitude — is the magnitude of change in the oscillating variable, with each oscillation, within an oscillating system. For instance, sound waves are oscillations in atmospheric pressure and their amplitudes are proportional to the change in pressure during … Wikipedia
Modulation — For musical change of key, see Modulation (music). For other uses, see Modulation (disambiguation). Passband modulation v · d · e … Wikipedia
amplitude — n. 1 a Physics the maximum extent of a vibration or oscillation from the position of equilibrium. b Electr. the maximum departure of the value of an alternating current or wave from the average value. 2 a spaciousness, breadth; wide range. b… … Useful english dictionary
Modulation sphere — The Modulation sphere or M space formulation is a scheme or theory representing the system of effects of phase modulation and amplitude modulation as applied together on a carrier wave. The relations between both modulations on the carrier are… … Wikipedia
