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首页> 外文会议>National Technical Seminar on Unmanned System Technology >Signal Processing Technique for Pulse Modulation (PM) Ground Penetrating Radar (GPR) System Based on Phase and Envelope Detector Technique
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Signal Processing Technique for Pulse Modulation (PM) Ground Penetrating Radar (GPR) System Based on Phase and Envelope Detector Technique

机译：基于相位和包络检测器技术的脉冲调制（PM）探地雷达（GPR）系统的信号处理技术

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摘要

Ground Penetrating Radar (GPR) system is a system used to detect and locate underground embedded objects which are based on the principles of RADAR. This system use reflection of electromagnetic wave technique, which will be generated towards the ground and detected back using antenna. This paper focuses on the analysis of signal processing of Pulse Modulation (PM) GPR system based on phase and envelope detector (ED) technique to detect and estimate the depth of embedded object in 3 dimension model of GPR system simulation designed using CST Studio Suite software. The antenna used in the simulation model is a Dipole antenna which operates at 70 MHz until 80 MHz. The background model used is a rectangular object with dry sandy soil material while the embedded object chosen is a rectangular iron object. Based on the output signal calculated by the CST software, the signal will be exported to be processed using MATLAB to produce GPR radargram. The simulation results show that by applying the proposed signal processing technique based on phase of GPR output signal, the embedded object can be seen clearly and estimated at about 900 and 1000 mm depth. By using ED technique all the embedded object can be detected but hard to be estimated on its depth.
机译：探地雷达（GPR）系统是用于根据RADAR原理检测和定位地下嵌入式物体的系统。该系统使用电磁波技术的反射，该电磁波将朝着地面生成并使用天线检测回来。本文重点分析了基于相位和包络检测器（ED）技术的脉冲调制（PM）GPR系统的信号处理，以检测和估计使用CST Studio Suite软件设计的GPR系统仿真的3维模型中嵌入对象的深度。仿真模型中使用的天线是偶极天线，其工作频率为70 MHz至80 MHz。使用的背景模型是具有干燥沙土材料的矩形对象，而选择的嵌入式对象是矩形铁对象。基于CST软件计算的输出信号，该信号将被导出以使用MATLAB进行处理，以生成GPR雷达图。仿真结果表明，通过应用提出的基于GPR输出信号相位的信号处理技术，可以清晰地看到嵌入物体，并在900毫米和1000毫米深度处对其进行估计。通过使用ED技术，可以检测到所有嵌入对象，但很难对其深度进行估计。

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