Subcarrier (SC)

Subcarrier (SC)
A&V
In NTSC or PAL video, a continuous sine wave of extremely accurate frequency which constitutes a portion of the video signal. The subcarrier is phase modulated to carry picture hue information and amplitude modulated to carry color saturation information. The NTSC subcarrier frequency is 3.579545 MHz, and the PAL-I frequency is 4.43361875 MHz. A sample of the subcarrier, called color burst, is included in the video signal during horizontal blanking. Color burst serves as a phase reference against which the modulated subcarrier is compared in order to decode the color information.

Audio and video glossary. 2014.

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Look at other dictionaries:

  • Subcarrier — A subcarrier is a separate analog or digital signal carried on a main radio transmission, which carries extra information such as voice or data. More technically, it is an already modulated signal, which is then modulated into another signal of… …   Wikipedia

  • subcarrier — ponešlis statusas T sritis radioelektronika atitikmenys: angl. subcarrier vok. Hilfsträger, m rus. поднесущая, f pranc. sous porteuse, f …   Radioelektronikos terminų žodynas

  • Subcarrier multiplexing — (SCM) is a method for multiplexing many different fiber optics based communication link into a single uplink fiber. The SCM (also known as SCMA, SubCarrier Multiple Access) is used in passive optical network (PON) access infrastructures as a… …   Wikipedia

  • subcarrier frequency — ponešlio dažnis statusas T sritis radioelektronika atitikmenys: angl. subcarrier frequency vok. Hilfsträgerfrequenz, f rus. частота поднесущей, f pranc. fréquence de la sous porteuse, f …   Radioelektronikos terminų žodynas

  • subcarrier generator — ponešlio generatorius statusas T sritis radioelektronika atitikmenys: angl. subcarrier generator vok. Hilfsträgergenerator, m rus. генератор поднесущей, m pranc. générateur de la sous porteuse, m …   Radioelektronikos terminų žodynas

  • subcarrier sideband — šalinė ponešlio juosta statusas T sritis radioelektronika atitikmenys: angl. subcarrier sideband vok. Hilfsträgerseitenband, n rus. боковая полоса поднесущей, f pranc. bande latérale de la sous porteuse, f …   Radioelektronikos terminų žodynas

  • subcarrier — sub·car·ri·er (sŭbʹkăr ē ər) n. Physics A section of a transmitted wave used to modify the information carrying section of the wave. * * * …   Universalium

  • subcarrier — noun A separate signal carried on a main radio transmission, often carrying additional information such as voice or data …   Wiktionary

  • subcarrier — sub·carrier …   English syllables

  • subcarrier — “+ noun Etymology: sub + carrier : a low frequency carrier in an electronic system (as a telemetering system or a multichannel radio system) used to modulate a main carrier and often being itself modulated to carry information …   Useful english dictionary

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