January 2016
Beginner to intermediate
430 pages
22h 38m
English
Content preview from Radar and ARPA Manual
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164
RADAR AND ARPA MANUAL
Raw picture
Suppression signal
Adaptive gain applied
~V
Sensing unit
determines
average
signal level
Inverting unit
determines
suppression
curve
Suppression
unit controls
instantaneous
gain
Adaptive gain bypassed when manual control selected
_ Clutter
suppression
Figure 3.43 The principle of adaptive gain
reaction time of the sensing section (sometimes referred
to as the integrator) of the adaptive gain circuitry (see
Figure 3.43) is designed to be too slow to respond to the
rapid excursions but sufficiently fast to react to the
slowly changing average signal level. The sensing sec-
tion thus effectively filters ou
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