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Simat simulator is an advanced hardware simulator
capable to simulate in infrared range several targets on quasi uniform
background. In detail Simat simulator is a modular image projector capable to
simulate in infrared range variable intensity, variable angular size, variable
spectrum, spatially and temporally dynamic airborne type targets on quasi
uniform background. Basically the aim of Simat to enable simulation
typical airborne targets like aircrafts or helicopters for infrared imaging
sensors used for surveillance of these targets. Optionally Simat can be
modernized to enable simulation in both IR and UV/visible ranges as the
projectors are built using broadband reflective optical elements.
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a)
b)
Fig.1. Exemplary IR images
generated by SIMAT simulator:
a)two IR
targets of similar size; b)primary triangular target surrounded by several
high intensity targets |
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Fig.2. Simat block diagram |
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Fig.3. Simat photo |
Tab. 1. Basic features of SIMAT simulator
| Function |
Description |
| Simulated scenery |
two small size, variable intensity, variable size, dynamic targets on
quasi uniform variable temperature background. PC controlled trajectory.
More targets of non regulated size. |
| Field of view |
Image of scenery of 5°x5°
angular size (or 7° circular) is
projected. By rotation of the tested sensor fixed on the MD2D motion table
the simulated field of view can be increased up to 120 deg (circular).
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| Spectral range |
1-6 mm (can be extended to
cover UV, Visible, and LW IR) |
| Background simulation |
Variable temperature semi-transparent blackbody. |
| Method of creating image of two independent targets |
Combining of images of two targets generated by two off axis reflective
collimators using reflective beam combiner |
| Distance simulation method |
Continuous regulation of angular size of the targets using
electronically controlled apertures. Simplified versions: step regulation.
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| Angular movement simulation method |
regulation of angular position of mirrors in beam combiner |
| Regulation of radiation emitted by the targets |
Temperature regulation of blackbodies/IR sources and by use of neutral
attenuators |
| PC control |
Distance to the targets (angular size of the targets), target angular
position, targets radiation (temperature regulation) |
More data -> Data sheet
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