demodulationn.

Brit.

/ˌdiːmɒdjᵿˈleɪʃn/,

/ˌdiːmɒdʒᵿˈleɪʃn/, U.S.

/diˌmɑdʒᵿˈleɪʃən/,

/diˌmɑdjᵿˈleɪʃən/

Origin: Formed within English, by derivation. Etymons: de- prefix, modulation n.

Etymology: < de- prefix + modulation n. (compare modulation n. 7). Compare slightly earlier demodulated adj. and demodulating adj., and slightly later demodulate v.

Radio and Electronics.

The process of obtaining from a modulated wave or voltage a signal which has the same form as the signal originally used to modulate it; the recovery of modulation. Cf. detection n. 3.Recorded earliest in demodulation-circuit.

ΘΚΠ

the world > matter > physics > electromagnetic radiation > electronics > electronic phenomena > processes > [noun] > recovery of signal from carrier

detection1906

demodulation1920

leaky-grid detection1934

slope detection1949

1920 U.S. Patent 1,361,487 1/1 I..have invented certain Improvements in Plural Demodulation-Circuits.

1929 T. E. Shea Transmission Networks & Wave Filters i. i. 20 In radio systems, a ‘carrier frequency’ and ‘two sidebands’ are produced. For demodulation and recognition of signals the carrier frequency and one sideband may be suppressed.

1963 G. Troup Masers & Lasers (ed. 2) ix. 162 Demodulation of microwave-modulated light has been achieved using travelling wave tubes.

2010 RadioUser Apr. 20/3 An entire 2MHz band segment can be recorded for later demodulation.

This entry has been updated (OED Third Edition, March 2014; most recently modified version published online March 2022).

单词	demodulation
释义	demodulationn. Brit. /ˌdiːmɒdjᵿˈleɪʃn/, /ˌdiːmɒdʒᵿˈleɪʃn/, U.S. /diˌmɑdʒᵿˈleɪʃən/, /diˌmɑdjᵿˈleɪʃən/ Origin: Formed within English, by derivation. Etymons: de- prefix, modulation n. Etymology: < de- prefix + modulation n. (compare modulation n. 7). Compare slightly earlier demodulated adj. and demodulating adj., and slightly later demodulate v. Radio and Electronics. The process of obtaining from a modulated wave or voltage a signal which has the same form as the signal originally used to modulate it; the recovery of modulation. Cf. detection n. 3.Recorded earliest in demodulation-circuit. ΘΚΠ the world > matter > physics > electromagnetic radiation > electronics > electronic phenomena > processes > [noun] > recovery of signal from carrier detection1906 demodulation1920 leaky-grid detection1934 slope detection1949 1920 U.S. Patent 1,361,487 1/1 I..have invented certain Improvements in Plural Demodulation-Circuits. 1929 T. E. Shea Transmission Networks & Wave Filters i. i. 20 In radio systems, a ‘carrier frequency’ and ‘two sidebands’ are produced. For demodulation and recognition of signals the carrier frequency and one sideband may be suppressed. 1963 G. Troup Masers & Lasers (ed. 2) ix. 162 Demodulation of microwave-modulated light has been achieved using travelling wave tubes. 2010 RadioUser Apr. 20/3 An entire 2MHz band segment can be recorded for later demodulation. This entry has been updated (OED Third Edition, March 2014; most recently modified version published online March 2022). < n.1920
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