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quantization-pulse modulation

См. также в других словарях:

  • 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

  • Modulation — For musical change of key, see Modulation (music). For other uses, see Modulation (disambiguation). Passband modulation v · d · e …   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

  • Quantization (sound processing) — In signal processing, quantization is the process of approximating a continuous range of values (or a very large set of possible discrete values) by a relatively small set of discrete symbols or integer values. This article describes aspects of… …   Wikipedia

  • quantization — [1] See digitize. [2] In quantum theory, the division of energy of a system into discrete units (quanta), so that continuous infinitesimal changes are excluded. [3] In pulse code modulation, the division of the amplitude range of a continuously… …   Dictionary of automotive terms

  • quantization noise — Noise introduced into a circuit using pulse code modulation because there are too few levels of quantitation to describe the waveform accurately …   Dictionary of automotive terms

  • 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

  • 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

  • Adaptive Differential Pulse Code Modulation — (ADPCM), auch Delta Pulse Code Modulation genannt, ist eine komprimierende Kodierung für ein Signal welche ähnlich wie Differential Pulse Code Modulation (DPCM) auf Differenzwerten basiert und zusätzlich die Skalierung der Quantisierungsstufen in …   Deutsch Wikipedia

  • Differential Pulse Code Modulation — Die Differential Pulse Code Modulation (DPCM) ist ein Pulsmodulationverfahren das ein zeitdiskretes Signal in ein zeit und wertdiskretes digitales Signal umsetzt. Es stellt eine Erweiterung der Puls Code Modulation (PCM) dar und ist eine Vorstufe …   Deutsch Wikipedia

  • electromagnetic radiation — Physics. radiation consisting of electromagnetic waves, including radio waves, infrared, visible light, ultraviolet, x rays, and gamma rays. [1950 55] * * * Energy propagated through free space or through a material medium in the form of… …   Universalium

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