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Extracting Radar Micro-Doppler Signatures of Helicopter Rotating Rotor Blades Using K-band Radars

机译:使用K波段雷达提取直升机旋翼桨叶的雷达微多普勒签名

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摘要

Helicopter identification has been an attractive topic. In this paper, we applied radar micro-Doppler signatures to identify helicopter. For identifying the type of a helicopter, besides its shape and size, the number of blades, the length of the blade, and the rotation rate of the rotor are important features, which can be estimated from radar micro-Doppler signatures of the helicopter's rotating rotor blades. In our study, K-band CW/FMCW radars are used for collecting returned signals from helicopters. By analyzing radar micro-Doppler signatures, we can estimate the number of blades, the length of the blade, the angular rotation rate of the rotating blade, and other necessary parameters for identifying the type of a helicopter.
机译:直升机识别一直是一个有吸引力的话题。在本文中,我们应用了雷达微多普勒签名来识别直升机。为了识别直升机的类型,除了其形状和大小之外,叶片的数量,叶片的长度和旋翼的旋转速度都是重要特征,可以根据直升机旋转的雷达微多普勒信号估计出这些特征转子叶片。在我们的研究中,K波段CW / FMCW雷达用于收集直升机返回的信号。通过分析雷达微多普勒信号,我们可以估计叶片的数量,叶片的长度,旋转叶片的角旋转速率以及其他用于识别直升机类型的必要参数。

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