- hierarchical modulation
- иерархическая модуляция
English-Russian dictionary of telecommunications and their abbreviations. A.V. Alexandrov.. 2004.
English-Russian dictionary of telecommunications and their abbreviations. A.V. Alexandrov.. 2004.
Hierarchical modulation — Hierarchical modulation, also called layered modulation, is one of the signal processing techniques for multiplexing and modulating multiple data streams into one single symbol stream, where base layer symbols and enhancement layer symbols are… … Wikipedia
Metric modulation — In music a metric modulation is a change (modulation) from one time signature/tempo (meter) to another, wherein a note value from the first is made equivalent to a note value in the second, like a pivot. The term was invented to describe the… … Wikipedia
Hierarchy — A hierarchy (Greek: hierarchia (ἱεραρχία), from hierarches, leader of sacred rites ) is an arrangement of items (objects, names, values, categories, etc.) in which the items are represented as being above, below, or at the same level as one… … Wikipedia
Orthogonal frequency-division multiplexing — Passband modulation v · d · e Analog modulation AM · … Wikipedia
Broadcast television systems — There are several broadcast television systems in use in the world today. An analogue television system includes several components: a set of technical parameters for the broadcast signal, a system for encoding color, and possibly a system for… … Wikipedia
Cliff effect — In telecommunications, the (digital) cliff effect or brickwall effect describes the sudden loss of digital signal reception. Unlike analog signals, which gradually fade when signal strength decreases or electromagnetic interference or multipath… … Wikipedia
Digital television transition in the United States — Further information: Digital television transition The DTV (an abbreviation of digital television, also called digital broadcast) transition in the United States was the switchover from analog (the traditional method of transmitting television… … Wikipedia
ATSC Standards — document a digital television format that will have replaced the analog NTSC television system [ [http://home.businesswire.com/portal/site/home/index.jsp?ndmViewId=news view ndmConfigId=1000001 newsId=20071017005469 newsLang=en Major retailer… … Wikipedia
Link adaptation — Link adaptation, or adaptive coding and modulation (ACM), is a term used in wireless communications to denote the matching of the modulation, coding and other signal and protocol parameters to the conditions on the radio link (e.g. the pathloss,… … Wikipedia
Digital terrestrial television — List of digital television broadcast standards DVB standards (Europe) DVB S (satellite) DVB S2 DVB T (terrestrial) DVB T2 DVB C … Wikipedia
QAM (television) — This article is about North American digital television. For other uses of QAM, see quadrature amplitude modulation. QAM stands for quadrature amplitude modulation, the format by which digital cable channels are encoded and transmitted via cable… … Wikipedia