Patent ID: 8013302
Filing Date: 2011-09-06
Classification: F41G,F41H,G01S

Abstract:
1. An infrared detection countermeasure system comprising: a screen, formed of at least one thermoelectric module, couplable to a target object, and a pair of aluminum or copper plates coupled to said thermoelectric module and acting as heat sinks for said thermoelectric module; a controller for controlling said thermoelectric module; at least two temperature sensors for measuring ambient temperature and temperature of one side of said thermoelectric module and providing an indication thereof to said controller; and a power source coupled to said thermoelectric module; wherein said controller is coupled to said power source for causing said power source to provide a level of power, selected in accordance with said temperature indications, to said thermoelectric module so as to generate a selected temperature in at least part of said screen; wherein said controller is operative to generate a selected temperature in at least part of said screen to provide a false thermal signature; further comprising: a thermal imaging camera for providing an image of background to be imitated; a digital signal processor (DSP) coupled to said camera, for analyzing radiometric data of said image; a CPU coupled to said DSP for receiving said analyzed gray levels and providing an output for controlling power; and polarity generators which, in turn, are coupled to the various TEC units.