再入等离子体隐身及反隐身分析  

Analysis of Reentry Plasma Stealth and Anti-stealth

作　　者：杨玉明[1,2] 王红[3] 谭贤四[3] 张伟[3] 

机构地区：[1]空军预警学院研究生管理大队 [2]93856部队 [3]空军预警学院二系

出　　处：《空军雷达学院学报》2012年第4期248-251,共4页Journal of Air Force Radar Academy

摘　　要：为有效探测再入等离子体隐身目标,建立了再入等离子体覆盖导体平板的理想模型,分析了电磁波在该模型中的传输特性和回波总衰减;根据再入等离子体高度和速度的试验数据分布,仿真计算了雷达各频段回波总衰减和再入高度、速度等参数的关系.计算结果表明,再入等离子体对低频段衰减较小,但衰减的范围较大,对高频段衰减较大,但衰减范围较小.最后,探讨了再入过程中不同高度下的反再入等离子体隐身目标的措施.For purpose of detecting effectively the reentry plasma stealth target, this paper brings forward an ideal model of the conductor plate coated with the reentry plasma, analyzes the transmission characteristics of EM wave and its echo total attenuation in this model, and finally, simulates and calculates the relations between the echo total attenuation in radar various frequency bands and the reentry height, velocity and other parameters, in terms of test data distribution of height and velocity of reentry plasma. Simulation results indicate that the reentry plasma exerts less attenuation in LF frequency band, but a wider attenuation range, and greater attenuation in HF band, but a narrower attenuation range. At last, the measures for coping with the reentry plasma stealth target at various heights in the process of reentry are dealt with in this paper.

关 键 词：再入体 再入等离子体 等离子体隐身 反隐身 

分 类 号：TN95[电子电信—信号与信息处理]