- discrete-difference modulation
- разностно-дискретная модуляция, РДМ
English-Russian dictionary of telecommunications and their abbreviations. A.V. Alexandrov.. 2004.
discrete-difference modulation
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MODULATION ET DÉMODULATION — Pour transmettre entre des points éloignés des signaux (sons ou images, par exemple) dont la portée est très limitée, on utilise, le plus souvent, comme véhicule de liaison, une onde électromagnétique dont on modifie une ou plusieurs… … Encyclopédie Universelle
Modulation transfer function (infrared imaging) — The Modulation Transfer Function (MTF) is used to approximate the position of best focus of an infrared imaging system. In an imaging system, best focus is typically achieved when the MTF is between 0.4 and 0.6; most often at 0.5 (50% cutoff… … 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
Pulse-density modulation — Pulse density modulation, or PDM, is a form of modulation used to represent an analog signal in the digital domain. In a PDM signal, specific amplitude values are not encoded into pulses as they would be in PCM. Instead it is the relative density … Wikipedia
Differential pulse-code modulation — (DPCM) is a signal encoder that uses the baseline of pulse code modulation (PCM) but adds some functionalities based on the prediction of the samples of the signal. The input can be an analog signal or a digital signal. If the input is a… … Wikipedia
Pulse-width modulation — (PWM) of a signal or power source involves the modulation of its duty cycle, to either convey information over a communications channel or control the amount of power sent to a load. PrinciplePulse width modulation uses a square wave whose pulse… … Wikipedia
Minimum resolvable temperature difference — (MRTD) is a measure for assessing the performance of infrared cameras, and is inversely proportional to the modulation transfer function. Typically, an operator is asked to assess the minimum temperature difference at which a 4 bar target can be… … Wikipedia
Orthogonal frequency-division multiplexing — Passband modulation v · d · e Analog modulation AM · … Wikipedia
Стандартизованные аббревиатуры типов модуляции — Кодовое обозначение рус. Тип модуляции сигнала англ. Type of signal modulation QPSK квадратурная фазовая манипуляция quadrature phase shift keying ADM адаптивная дельта модуляция adaptive delta modulation ADPCM адаптивная дифференциальная… … Википедия
ITU G.992.1 — In telecommunications, ITU G.992.1 (better known as G.DMT) is an ITU standard for ADSL using discrete multitone modulation. G.DMT full rate ADSL expands the usable bandwidth of existing copper telephone lines, delivering high speed data… … Wikipedia
Comparison of analog and digital recording — This article compares the two ways in which sound is recorded and stored. Actual sound waves consist of continuous variations in air pressure. Representations of these signals can be recorded using either digital or analog techniques. An analog… … Wikipedia
