overmodulationn.
/ˌəʊvəmɒdjᵿˈleɪʃn/, /ˌəʊvəmɒdʒᵿˈleɪʃn/, U.S. /ˈˌoʊvərˌmɑdʒəˈleɪʃ(ə)n/ Electronics and Telecommunications.
Distortion occurring during amplitude modulation as a result of an excessively large modulating signal; spec. distortion whereby the amplitude of the carrier becomes zero for a significant part of each cycle of the modulating wave.
ΘΚΠ
the world > matter > physics > electromagnetic radiation > electronics > electronic phenomena > signal > [noun] > unwanted part of signal > distortion > types of
overmodulation1927
harmonic distortion1929
amplitude distortion1931
intermodulation1931
cross-modulation1933
1927 Exper. Wireless Jan. 3/1 The strengths of..undesired harmonics relative to the desired fundamental decrease as the modulation ratio α/a is decreased. This is the ground for the term ‘over-modulation’ as a fault at the transmitter. Over-modulation shows, of course, only during the relatively loud passages.
1962 A. Nisbett Technique Sound Studio vii. 132 One of the problems which may arise when tape is re-used is a background ‘chatter’ from the previous recording. This can be due..to overmodulation of the previous recording.
1996 Jrnl. Lightwave Technol. 14 671/2 A novel SV signaling method..generates the SV signal by subcarrier overmodulation of the line signal.
This entry has been updated (OED Third Edition, December 2004; most recently modified version published online March 2022).
<
n.1927- subcolonize
- subcommandant
- subcommander
- subcommissar
- subcommissary
- subcommissaryship
- subcommission
- subcommissioner
- subcommissions
- subcommit
- subcommittee
- subcommittees
- subcommunities
- subcommunity
- subcompact
- subcompacts
- subcomponent
- subcomponents
- subcompressed
- subconcealed
- subconductor
- subconference
- subconic
- subconical
- subconjunctival