e/Minimum-shift keying

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has glosseng: In digital modulation, minimum-shift keying (MSK) is a type of continuous-phase frequency-shift keying that was developed in the late 1960s. Similar to OQPSK, MSK is encoded with bits alternating between quarternary components, with the Q component delayed by half the symbol period. However, instead of square pulses as OQPSK uses, MSK encodes each bit as a half sinusoid. This results in a constant-modulus signal, which reduces problems caused by non-linear distortion. In addition to being viewed as related to OQPSK, MSK can also be viewed as a continuous phase frequency shift keyed (CPFSK) signal with a frequency separation of one-half the bit rate.
lexicalizationeng: Minimum shift keying
lexicalizationeng: minimum-shift keying
instance of(noun) (electronics) the transmission of a signal by using it to vary a carrier wave; changing the carrier's amplitude or frequency or phase
modulation
Meaning
French
has glossfra: La modulation Minimum-shift keying (MSK) est un type de modulation numérique par déplacement de fréquence à phase continue. Sur le principe du OQPSK, la MSK est encodée par des bits alternant entre des moments en quadrature, la composante Q étant retardée de la durée dun symbole. Cependant, à linverse des signaux carrés utilisés en QPSK, la modulation MSK encode chaque bit sur une demi-sinusoïde. On obtient ainsi un signal de module constant, ce qui diminue les problèmes de distorsions non linéaires.
lexicalizationfra: Minimum-shift keying
Polish
has glosspol: MSK (ang. Minimum Shift Keying) odmiana modulacji FSK fal elektromagnetycznych stosowana do przesyłu informacji w telekomunikacji. Jest to w praktyce modulacja CPFSK (ang. Continuous Phase FSK), czyli kluczowanie częstotliwości z ciągłą fazą. Charakteryzuje się dobrymi właściwościami energetycznymi.
lexicalizationpol: MSK
Chinese
lexicalizationzho: 最小移频键控
Media
media:imgDiagram konstalacji MSK.jpg
media:imgModulator MSK.jpg
media:imgPi-by-O-QPSK Gray Coded.svg
media:imgWykres kratowy fazy.jpg
media:imgWykres kratowy fazy2.jpg

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