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Simulation and analysis of polarimetric radar signatures of human gaits

机译:步态极化雷达信号的仿真与分析

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Radar observations of human activities have a variety of applications in security, defense, and rescue operations. Range-Doppler signatures of human motions are a useful tool for retrieving information on observed activities but require an understanding of the scattering processes involved to enable interpretation. This paper presents a study of human Doppler signatures using simulations, in particular focusing on the impact of the polarization to enable an understanding of any advantages in the use of polarimetric radar. The simulation model utilized is based on an approximate scattering approach combined with a 12-cylinder description of the human body. A comparison with single polarization co-pol measurements is used to show that the model provides reasonable first-order predictions of human signatures. Further simulations for polarimetric signatures illustrate the differing contributions of individual body parts to micro-Doppler returns and suggest that multi-polarization measurements can be useful in future micro-Doppler radar systems for human observation.
机译:人体活动的雷达观测在安全,防御和救援行动中有多种应用。人体运动的距离多普勒签名是一种有用的工具,可用于获取有关观察到的活动的信息,但需要了解所涉及的散射过程才能进行解释。本文介绍了使用模拟对人类多普勒信号进行的研究,特别是关注极化的影响,以使人们了解使用极化雷达的任何优势。所使用的仿真模型基于近似散射方法以及对人体的12缸描述。与单极化共极化测量的比较用于显示该模型提供了合理的人类签名一阶预测。极化特征的进一步仿真说明了各个身体部位对微多普勒回波的不同贡献,并表明多极化测量在将来的人类观察用微多普勒雷达系统中可能很有用。

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