中文摘要：

结合USB接口和探地雷达数据采集的特点，设计了一种基于USB接口的探地雷达数据采集系统。从硬件设计、设备驱动程序设计和应用软件设计3个方面对系统进行了全面阐述，并通过实验验证了系统采集数据的准确性和高效性。系统选用FTDI公司的USB芯片FT245BM，为探地雷达设备与PC机之间构筑了一条高速双向传输通路，从而实现了雷达数据准确、高速的采集和传输，为探地雷达信号处理和实时显示奠定了基础。

英文摘要：

A data acquisition system of GPR（ Ground Penetrating Radar） based on USB interface is designed,which combines the characteristic of the USB and the data acquisition of GPR. The article expounds the system from the hardware design, driver program design and application program design. Through a experiment, the performance of the system is proved excellence. The system adopts the FT245BM chip of FTDI Ltd. ,has realized GPR and PC high- speed two- orientation communication.