Instantaneous" automatic gain control

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4-3-315

Instantaneous" automatic gain control (I.A.G.C.)

In radar, a quick acting automatic gain control which does not respond to single echoes, but which responds to variations of mean clutter level, so that clutter is reduced. Return to high sensitivity is also accomplished quickly for reception of weak signals.

Reference: B.S. (modified)




Please note that this is the term as it stands in the original IALA Dictionary edition (1970-1989)

charge current

Intensity

ampere

centre of gravity

Contrast

Celsius (previously Centigrade)

Capacitance

Centre of buoyancy

South

International Association of Marine Aids to Navigation and Lighthouse Authorities - AISM