Design of the real-time data acquisition and transmission system for the Qinghai-Tibet Railway particular detection ground penetrating radar

This project develops a set of ground penetrating radar system special for the Qinghai-Tibet Railway detection, in order to rapidly detect the freeze-thawing damage and so on to the Qinghai-Tibet Railway subgrade. The parallel analog-to-digital converter AD7634 with high speed and high precision is adopted in this paper, which combines the FPGA technology and the USB bus to realize the rapid and real-time transmission of the Radar echo data, and the high-performance floating point signal processor is also adopted for the Radar echo data of real-time procession. Real-time data acquisition, procession and transmission system with three channels is adopted in the ground radar, which has achieved well application result on the Qinghai-Tibet Railway, and reached the required detecting velocity of this project.