Record Details

Effect of atmospheric transmission and radiance on aircraft infrared signatures

DSpace at IIT Bombay

View Archive Info
 
 
Field Value
 
Title Effect of atmospheric transmission and radiance on aircraft infrared signatures
 
Creator RAO, GA
MAHULIKAR, SP
 
Subject clear skies
temperature
sky
 
Description This paper elaborates the role of atmosphere in determining infrared signatures of aircraft as perceived by a ground-based infrared detector, similar to the case of an infrared guided heat-seeking surface-to-air missile. The main objectives are to assess the effect of atmosphere on aircraft infrared signature and to evaluate infrared bands in which a conventional fighter-class aircraft is most susceptible to infrared guided missiles. Such an analysis Is of paramount importance for aircraft infrared signature management and aircraft mission planning. First, the lock-on range is derived as a function of aircraft, missile seeker, and atmospheric parameters. Thus, the role of atmospheric radiance and transmittance in determining aircraft signature level as perceived by the missile infrared seeker is brought out. The role of various atmospheric constituents in dictating infrared characteristics of the atmosphere is also discussed. The Berger's model is used for computing atmospheric/sky radiance and the Lowtran-7 model to compute atmospheric transmissivity. The infrared bands in which the aircraft signature is prominent are identified, and the variation of aircraft signature level and lock-on range with respect to a typical surface-to-air missile within these bands are analyzed and discussed for a representative case.
 
Publisher AMER INST AERONAUT ASTRONAUT
 
Date 2011-07-15T08:37:55Z
2011-12-26T12:49:22Z
2011-12-27T05:37:29Z
2011-07-15T08:37:55Z
2011-12-26T12:49:22Z
2011-12-27T05:37:29Z
2005
 
Type Article
 
Identifier JOURNAL OF AIRCRAFT, 42(4), 1046-1054
0021-8669
http://dspace.library.iitb.ac.in/xmlui/handle/10054/4204
http://hdl.handle.net/10054/4204
 
Language en