Abstract
Stealth technology emphasizes on the reduction in reflection and radiation energies, the surface of target's body in the range of visual, radar, thermal and near IR and so on. Providing solutions to reduce thermal IR intensity radiation is one of the appropriate actions in passive defense for identifying power and targeting enemy. Therefore, questions are brought up: How much is the thermal IR intensity radiation of surface of the hall’s vessel? How much is the effect of each parameter? This thesis tries to provide the software to answer these questions. The provided software measures thermal IR intensity radiation of the surface of the hall’s vessel by the material substance, the temperature of the surface of the hall’s vessel, the situation and characteristic of the thermal detector, noticing the coefficient of environment atmospheric transmittal. This software by changing the effective parameters on thermal IR radiation calculates the thermal radiation on thermal detector in different situations.
Highlights
One of the passive defense measures for ships is reducing or eliminating the identifiable symptoms for military sensors that caused concealment and camouflage for military vessels
3) Geometry of the vessel’s hull is effective in the level of thermal infrared radiation intensity, and the received thermal infrared radiation intensity increases with the amount of surfaces normal to the thermal sensor
11) Transmission coefficient of atmosphere is effective in the received thermal infrared radiation intensity, so that when transmission coefficient of atmosphere approaches to one, maximum power is received by the sensor
Summary
One of the passive defense measures for ships (vessels) is reducing or eliminating the identifiable symptoms for military sensors that caused concealment and camouflage for military vessels. Identifiable symptoms depend on the type of identifier sensor of enemy. For the passive defense measures, it is necessary to determine the level of identifiable symptoms [1] [2]. Thermal sensors as passive receivers, undertakes the task of detecting targets that have different thermal radia-. How to cite this paper: Laleh, R.E. and Ghasemloo, N. Ghasemloo tion from their background and work at thermal infrared spectrum on the two bands 3 - 5 and 8 - 14 micrometers (with respect to the thermal of vessel’s hull surface), and detect the target by differentiation the thermal radiation target from background [3]
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