modulation system

См. также в других словарях:

• System X (telephony) — System X was the name of the UK s first national digital telephone exchange system.HistorySystem X was developed by the UK Post Office (later to become British Telecom), GEC, Plessey, and Standard Telephones and Cables (STC), and first shown in… …   Wikipedia

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

• Modulation Transfer Function — Durch das bildgebende System (Objektiv, Kamera, Teleskop, Fotolabor, Dia, usw.) entsteht immer ein Kontrastverlust. Wird der Kontrast eines Objektes und der Kontrast der bildlichen Darstellung (dieses Objektes) miteinander verglichen, wird immer… …   Deutsch Wikipedia

• Modulation (music) — Key change example: C major to C minor. In music, modulation is most commonly the act or process of changing from one key (tonic, or tonal center) to another. This may or may not be accompanied by a change in key signature. Modulations articulate …   Wikipedia

• Modulation (Technik) — Die Modulation (von lat. modulatio = Takt, Rhythmus) beschreibt in der Nachrichtentechnik einen Vorgang, bei dem ein zu übertragendes Nutzsignal (beispielsweise Musik, Sprache, Daten) eine sogenannte Trägerwelle verändert (moduliert). Dadurch… …   Deutsch Wikipedia

• 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

• 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

• Modulation error ratio — The modulation error ratio or MER is a measure used to quantify the performance of a digital radio transmitter or receiver in a communications system using digital modulation (such as QAM). A signal sent by an ideal transmitter or received by a… …   Wikipedia

• Multiple sub-nyquist sampling Encoding system — MUSE (Multiple Sub nyquist Sampling Encoding System), also known as Hi Vision for marketing purposes, was an early high definition analog television standard developed in Japan. Japan had the earliest working HDTV system, with design efforts… …   Wikipedia

• Polar modulation — is analogous to quadrature modulation in the same way that polar coordinates are analogous to Cartesian coordinates. Quadrature modulation makes use of Cartesian coordinates, x and y . When considering quadrature modulation, the x axis is called… …   Wikipedia

• 8/14 Modulation — Eight to Fourteen Modulation (EFM) bezeichnet das Verfahren, nach dem der Datenstrom, der auf CDs und Minidiscs gespeichert ist, codiert wird. Auch der digitale Sound von Laserdiscs ist EFM codiert. Jedem Byte (Datenblock, bestehend aus 8 Bits),… …   Deutsch Wikipedia