In order to get more information of radar target in the frequency domain, a step LFM system is adopted to measure target characteristics according to the concept of UWB.

• 摘要为获取雷达目标丰富的频域信息，从超宽带雷达信号的概念出发，提出采用步进线性调频超宽带体制的目标特性测量方法，阐述了目标特性测量的基本原理。