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|  MIL-G-46858A
c. Wire Command - Command guidance equipment used for the reception of
command signals transmitted through wires connecting the missile with a
remote control station.
d. Infrared Command - Command guidance equipment used in systems wherin
infrared rays are employed as the carrier for the transmission of command
signals.
6.3.8 Composite error. - Composite error is the maximum deviation of the output data
of a missileborne sensor from the least squares regression line of the output
characteristics.
6.3.9 Control device. - The control device of a missile is any device which afffects
the flight path of a misile either aerodynamically (with ailerons, rudders, elevators,
canards, etc.) or by thrust vector means (with jetavators, gimbaled engines, secondary
injection, etc.).
6.3.10 Damping ratio. - Damping ratio is the ratio of actual damping to critical
damping.
6.3.11 Drift rate. - Drift rate is the time rate of deviation of the steady state value of
output of a missileborne sensor for a constant input.
6.3.12 Equipment. - Equipment refers to one or more units capable of performing a
specified function.
6.3.13 Frequency stability. - The control of the variation in the center frequency so
that it differs from that of a reference source by not more than a prescribed amount.
6.3.14 Interference. - Interference is defined as any electrical or electromagnetic
distrubance, phenomenon, signal or emission, man-made or natural, which causes or
can cause undesired response, malfucntioning or degradation of performance of
elelctrical and electroinic equipment, or prematrue and undesired location, detection or
discovery by enemy forces. This definition is meant to exclude deliberately generated
interfeence (jamming interference/ electronic countermeasures).
6.3.15 Input range. - Input range is the absolute value of the difference between zero
input and the extreme measureable input for a missileborne sensor.
6.3.16 Modulation linearity. - The manner in which the devation varies as the
amplitude of the modulating voltage changes.
6.3.17 Natural frequency. - Natural frequency is that frequency at which the output of
a missileborne sensor lags the input by ninety degrees.
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