A concept of Ultra wideband radar signal is proposed, and then a time domain imaging algorithm is presented to reconstruct far field images of conducting objects.

给出超宽带雷达信号的概念，提出由超宽带雷达信号散射远场重建理想导体目标简捷的时域成像公式和实现算法。

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A typical Ultra Wideband Radar system emits impulse signal, which has wide band, but limited operating range.

典型的超宽带雷达系统发射的是冲激脉冲信号，具有很大的带宽，但限制了系统的作用距离。

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LFM signal is a classic pulse compression signal and it is one of the ultra-wideband radar waveforms, there is sophisticated theoretical basis of its generating, receiving and processing.

线性调频信号作为一种典型的脉压信号，同时也是超宽带雷达调制波形中的一种，其产生和接收处理已具备了较为成熟的理论研究。

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