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无翼平底弹头的属性散射中心模型改进与参数估计

DOI: 10.15918/j.tbit1001-0645.2015.09.016

Keywords: 属性散射中心 参数估计 遗传算法 时频图 图像匹配

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Abstract:

针对传统属性散射中心模型在描述散射中心幅度随方位的变化存在不足,本文依据目标的逼真散射数据对属性散射模型中的方位依赖关系进行了修正,并通过图像匹配结合遗传算法对散射中心的各个参数进行了估计. 为了验证模型的有效性,文中给出了修正模型的仿真结果与传统模型仿真结果以及全波法计算结果的比较. 结果表明,相对于传统的属性散射中心模型,改进后的模型能更准确地描述真实散射中心的幅度随方位的变化关系

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