What does phase modulation mean?
Definitions for phase modulation
phase mod·u·la·tion
This dictionary definitions page includes all the possible meanings, example usage and translations of the word phase modulation.
Princeton's WordNet
phase modulation, PMnoun
modulation of the phase of the carrier wave
Wiktionary
phase modulationnoun
A method of sending information by modifying (modulating) the difference in phase (fraction of a wave length) between a signal and a reference.
Wikipedia
Phase modulation
Phase modulation (PM) is a modulation pattern for conditioning communication signals for transmission. It encodes a message signal as variations in the instantaneous phase of a carrier wave. Phase modulation is one of the two principal forms of angle modulation, together with frequency modulation. In phase modulation, the instantaneous amplitude of the baseband signal modifies the phase of the carrier signal keeping its amplitude and frequency constant. The phase of a carrier signal is modulated to follow the changing signal level (amplitude) of the message signal. The peak amplitude and the frequency of the carrier signal are maintained constant, but as the amplitude of the message signal changes, the phase of the carrier changes correspondingly. Phase modulation is widely used for transmitting radio waves and is an integral part of many digital transmission coding schemes that underlie a wide range of technologies like Wi-Fi, GSM and satellite television. It is also used for signal and waveform generation in digital synthesizers, such as the Yamaha DX7, to implement FM synthesis. A related type of sound synthesis called phase distortion is used in the Casio CZ synthesizers.
ChatGPT
phase modulation
Phase modulation is a method of transmitting information through altering the phase of a carrier signal according to the data being sent. In this method, the frequency and amplitude of the carrier signal remain constant, while its phase varied according to the baseband signal. This modulation technique is commonly used in data and telecommunications.
Wikidata
Phase modulation
Phase modulation is a form of modulation that represents information as variations in the instantaneous phase of a carrier wave. Modification in phase according to low frequency will give phase modulation. Unlike its more popular counterpart, frequency modulation, PM is not widely used for radio transmissions. This is because it tends to require more complex receiving hardware and there can be ambiguity problems in determining whether, for example, the signal has changed phase by +180° or -180°. PM is used, however, in digital music synthesizers such as the Casio CZ synthesizers, or to implement FM synthesis in digital synthesizers such as the Yamaha DX7.
Matched Categories
Numerology
Chaldean Numerology
The numerical value of phase modulation in Chaldean Numerology is: 1
Pythagorean Numerology
The numerical value of phase modulation in Pythagorean Numerology is: 2
Translations for phase modulation
From our Multilingual Translation Dictionary
- PhasenmodulationGerman
- διαμόρφωση φάσηςGreek
- modulación de la faseSpanish
- vaihemodulointi, vaihemodulaatioFinnish
- modulation de phaseFrench
- fázismodulációHungarian
- fasamótunIcelandic
- modulazione di faseItalian
- fasemodulatieDutch
- modulação em fasePortuguese
- modulație de fazăRomanian
- модуляция участкаRussian
- fasmoduleringSwedish
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"phase modulation." Definitions.net. STANDS4 LLC, 2024. Web. 21 Dec. 2024. <https://www.definitions.net/definition/phase+modulation>.
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