Thermal Characteristic Analysis of Balloon Decoys in Flight Midcourse of Ballistic Missile

Zhu Min; Liu Hua-zhang; Xi Xiao-liang
November 2013
Journal of Applied Sciences;2013, Vol. 13 Issue 22, p5478
Academic Journal
Balloon decoys technology is a successful penetration method of ballistic missile in flight midcourse. The radar can't recognize the warhead if the nuclear warhead is hidden in a metal balloon. But the temperatures of balloon decoy and balloon with warhead are different because the warhead can transmit heat to the balloon, then the infrared detectors in missile recovery system will distinguish the nuclear warhead according to the temperature difference. Aiming at this problem, we studied thermal characteristic of balloon decoys which are released is analyzed theoretically under two different conditions, namely, day attack and night attack in this study. Thermal balance temperature and the necessary time to reach balance temperature of balloon decoys are calculated. Temperature trend of balloon with warhead in midcourse is analyzed quantitatively. The measures to eliminate all kinds of heat effects between nuclear warhead and balloon are put forward by use of proper surface coat in day attack. At night attack, the infrared detector can't distinguish balloon with warhead from balloon decoys after we adopt corresponding active countermeasures and passive countermeasures.


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