phase-shift keying
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Definitions of phase-shift keying words
- noun Technical meaning of phase-shift keying (communications) (PSK) A digital modulation scheme that conveys data by changing the phase of a carrier wave. The data can either determine the absolute phase relative to the unmodulated carrier or reference signal ("coherent phase-shift keying", CPSK) or the change in phase ("differential phase-shift keying", DPSK). The number of different phases used determines the amount of data that can be transmitted in each cycle. Each cycle can be considered to constitute one "symbol", e.g. with two possible phases, each cycle carries one bit. The more phases that are used, the less tollerant to noise the transmissions becomes. Alternatives to PSK are amplitude-shift keying (ASK) and frequency-shift keying (FSK). 1
- noun phase-shift keying A form of phase modulation in which digital information is transmitted through discrete changes of the phase of a carrier wave. 0
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Parts of speech for Phase-shift keying
noun
adjective
verb
adverb
pronoun
preposition
conjunction
determiner
exclamation
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