Target simulators

Great majority of systems manufactured by Inframet (test systems section of website) are image projectors that project images of simple shape static targets (example: edge/4-bar/3-bar targets) in order to enable measurement of parameters of tested imagers (example parameters: MRTD, MTF, MRC, NETD, NEI).  In this section there are presented target simulators having different task: to project images of targets that simulate the real objects.

Inframet offers five types of target simulators: Simat, Simit, Sim780, Sipek, and Suvir. All these simulators enable simulation of airborne/space targets by projecting images of simple shape targets of precisely controlled radiometric properties (intensity, spectrum).

Fig.1. Photo of Simit simulator

Fig.2. Photo of Simat simulatorInframet offers five types of target simulators:

There are significant differences between offered target simulators  when comparing simulated scenario.

Simat projects image of two dynamic targets of regulated size, radiation intensity/spectrum and angular position that are located at quasi uniform background.
Simit projects image of one static primary target and up to four dynamic secondary targets of regulated size, radiation intensity/spectrum and angular position.
Sim780 is a simplied version of Simit. Number of secondary targets is limited to one.
Sipek simulator projects image of a dynamic target moving along a circle of requlated diameter.
All these four target simulators simulate positive contrast scenarios: bright target/targets on a dark backgound emitting light in infrared range. In contrast the last simulator - Suvir- projects two images: 1)typical positive contrast scenario: bright emission target in infrared range (mostly in MWIR band) located on dark/cold background, 2)negative contrast scenario: dark non emission target located on bright emissive background in UV range.
    It should be noted that Inframet target simulators should not be confused with scene simulators. The latter ones are advanced military grade systems that projects dynamic detail images of military targets when target simulators are capable only to project highly simplified imagers. However, target simulators enable typically more precise control of radiometric properties of simulated targets. Therefore offered target simulators can be useful tools in both civilian applications (example: simulation of space objects in astronomy) or less demandig military applications (example: simplified simulation of airborne targets).

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