空间飞行体与周围等离子体之间的非稳态问题研究

STUDY OF NON-STEADY PROBLEMS FOR BODIES MOVING IN SPACE AND ITS PLASMA ENVIRONMENT

本文研究了拖有天线的空间飞行体与周围等离子体之间的非稳态相互作用;获得了描述尾流区这种相互作用的控制方程组。结果表明,飞行体上的天线系统可作为调制不稳定性的泵波源,激发起甚强的可探测到的电磁孤波;这意味着即便是隐身飞行体,人们也能探测尾流区的电磁孤波而发现它的行踪。

Non-steady interaction between spacecraft with antenna and plasma are investigated in detail. The system of equations describing these interactions in the far-wake region is obtaincd. It is shown that as the source of pump wave, the radiation from antenna system could excite an electromagnetic soliton via the modulational instabilities; in other words, one could trace out a stealth vehicle by means of observing the electromagnetic soliton in far-wake region.