中文摘要：

与时域无载频脉冲体制的探地雷达相比,频率步进探地雷达在探测性能上具有较多的优越性。本文介绍了一种小型化、低成本的频率步进探地雷达系统设计方案。系统发射机基于数字频率合成技术实现超宽带步进频率信号,接收机采用单通道零差式接收技术,通过对实测数据的分析表明该系统设计是有效可行的。

英文摘要：

Compared with traditional no-carrier pulse ground penetrating radar,Stepped-Frequency Ground Penetrating Radar（SFGPR） has many advantages on detection performance.A miniature and low-cost SFGPR system is presented in this paper.The transmitter realizes ultra-band stepped-frequency signal with digital frequency synthesizer technique.The receiver adopts single channel and homodyne architecture.Experiment results show that the system is effective and practical.