Design of the real-time data acquisition and transmission system for the TDAP-5Qinghai-Tibet Railway particular detection ground penetrating radar

摘要

This project develops a set of ground penetrating radarsystem special for the Qinghai-Tibet Railway detection, inorder to rapidly detect the freeze-thawing damage and so onto the Qinghai-Tibet Railway subgrade. The parallelanalog-to-digital converter AD7634 with high speed and highprecision is adopted in this paper, which combines the FPGAtechnology and the USB bus to realize the rapid andreal-time transmission of the Radar echo data, and thehigh-performance floating point signal processor is alsoadopted for the Radar echo data of real-time procession.Real-time data acquisition, procession and transmissionsystem with three channels is adopted in the ground radar,which has achieved well application result on theQinghai-Tibet Railway, and reached the required detectingvelocity of this project.