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针对火箭尾焰喷射出的大量物质消耗大气中电子密度以及干扰高频电磁波传播的问题,本文从分析火箭尾焰高频雷达回波特性入手,重点研究了尾焰电磁特性和对高频电磁波衰减的物理机理,分析了尾焰雷达散射特性与尾焰高频回波产生的时机.在此基础上,提出了一种尾焰回波频域能量凝聚的目标检测方法.通过仿真实验和理论分析,得到了火箭尾焰高频电磁回波与海拔高度、尾焰电磁特性、电波频率、入射角之间的关系,所提检测方法能够及时有效检测火箭目标,并降低虚警和漏警概率.
Aiming at the problem that a large amount of material ejected from the rocket tail flame consumes the electron density in the atmosphere and interferes with the propagation of high frequency electromagnetic waves, this paper analyzes the rocket tail flame high frequency radar echoes characteristics, focusing on the electromagnetic properties of the tail flame and high frequency electromagnetic wave At the same time, the physical mechanism of the end-flame radars is analyzed, and the timing of the generation of tail-flame high-frequency echo is analyzed.A target detection method of the energy condensation in the tail-flame echo is proposed.According to the simulation experiment and theory The relationship between rocket tail flame high frequency electromagnetic echoes and altitude, tail flame electromagnetic properties, radio frequency and angle of incidence is obtained. The proposed method can detect rocket targets in time and reduce false alarm and missed alarm probability .