Figure 7-9.-Example ATP-45 output.
Ranges may be predicted for several FLIR devices
against surface or ASW targets.
APPLICATION
Users of the FLIR output include mission planners,
pilots in the air wing, and the carrier group staff. The
FLIR output can assist them in placing aircraft at
altitudes to maximize FLIR detection of surface or ASW
targets.
LIMITATIONS AND ASSUMPTIONS
The restrictions as well as the principles taken for
granted in using the FLIR program areas follows:
. The input environmental data are representative
of the entire area of interest. Therefore, changes in the
environment over time and over space are not accounted
for.
l Radiation is absorbed by molecules and both
absorbed and scattered by aerosols. Other effects
such as attenuation by rain, fog, and haze are
neglected.
l Targets are limited to rectangular bodies of fixed
dimension with fixed target-to-background temperature
differences, Teff. The target dimensions and
temperatures correspond to “effective” target
parameters. For example, a “periscope detection”
attempts to emulate detection of a target area larger
than a periscope, corresponding more to detection of a
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