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目标微动及结构参数的获取有助于弹道目标的识别。准确获得进动锥体目标散射特性的时频分布(TFD)、一维距离像及二维逆合成孔径雷达(ISAR)像分布是获取锥体目标微动及结构参数的关键。分析了进动锥体在窄带及宽带条件下的目标散射特性,总结了锥体目标强散射源在时频分布、距离像序列和ISAR像序列中的理论表现形式,并分析了存在锥面镜面散射时锥体目标散射特性,构建了进动锥体目标电磁回波仿真方法及微波暗室动态测试系统,通过仿真及测试数据得到了典型条件下锥体目标的散射特性,对比表明仿真及测试结果均与本文散射特性理论分布相一致,说明了本文所提散射特性理论分布与散射特性分析方法的正确性,可为分析弹道目标散射特性研究提供参考。
Acquisition of target inching and structural parameters is helpful for ballistic target recognition. Accurately obtaining the time-frequency distribution (TFD), one-dimensional range images and two-dimensional ISAR image distributions of the target scattering characteristics of the precession cone is the key to obtaining the micro-movement and structural parameters of the cone. The target scattering characteristics of precession cone under narrowband and wideband conditions are analyzed. The theoretical representation of the cone target strong scattering source in time-frequency distribution, distance image sequence and ISAR image sequence is summarized, and the existence of conical mirror The scattering characteristics of cone targets during scattering are established. The simulation method of target electromagnetic echo of precession cone and the dynamic test system of microwave anechoic chamber are established. The scattering characteristics of cone target under typical conditions are obtained through simulation and test data. The simulation and test results Which is consistent with the theoretical distribution of the scattering properties in this paper. It shows that the theoretical analysis of the scattering and scattering properties of the scattering properties proposed in this paper is correct, which can provide reference for the analysis of the scattering properties of the ballistic targets.