Automatic Gain Control
Automatic Gain Control :
(n.) Geophysics. A system to control the?gain, or the increase in the amplitude of an electrical signal from the original input to the amplified output, automatically. AGC is commonly used in seismic processing to improve visibility of late-arriving events in whichattenuation or wavefront divergence has caused amplitude decay. Alt. form: AGC, AGC time constant. See: Event, Processing, Q
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