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UWB radar target recognition based on time-domain bispectrum

机译：基于时域双谱的超宽带雷达目标识别

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摘要

Complex targets are irradiated by UWB radar, not only the mirror scattering echoes but also the multiscattering interacting echoes are included in target echoes. These two echoes can not be distinguished by classical frequency spectrum and power spectrum. Time-domain bispectrum features of UWB radar signals that mingled with noise are analyzed, then processing this kind of signal using the method of time-domain bispectrum is experimented. At last, some UWB radar returns with different signal noise ratio are simulated using the method of time-domain bispectrum. Theoretical analysis and the results of simulation show that the method of extraction partial features of UWB radar targets based on time-domain bispectrum is good, and target classification and recognition can be implemented using those features.
机译：UWB雷达辐照复杂的目标，目标反射波中不仅包括镜面散射回波，而且还包括多散射相互作用的回波。这两个回声无法通过经典频谱和功率谱来区分。分析了混有噪声的UWB雷达信号的时域双谱特征，然后尝试采用时域双谱方法处理这种信号。最后，采用时域双谱方法对不同信噪比的UWB雷达回波进行了仿真。理论分析和仿真结果表明，基于时域双谱的UWB雷达目标局部特征提取方法是好的，可以利用这些特征进行目标分类和识别。

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