基于探地雷达回波信号获取污染土壤中污染物含量的研究进展

从探地雷达GPR(Ground Penetrating Radar)在土壤污染探测中的应用、污染土壤介电常数模型的演化和土壤介电常数求取三方面综述了目前国内外学者利用探地雷达技术开展的土壤污染探测研究.研究认为以土壤介电常数为纽带,采用适宜的方法从雷达回波信号求得介电常数,基于合理的土壤介电常数模型,通过神经网络技术,可驯化建立介电常数和污染土壤多个参数之间联系,从而实现污染土壤中多种污染物含量的监测.

Progress on detection of contamination content in the contaminated soilbased on Ground Penetrating Radar

From three aspects,application of Ground Penetrating Radar(GPR) to surveying the contaminated soil,dielectric model evolution of the contaminated soil and the ways to obtain the soil dielectric constant,this paper makes a review about the research of domestic and foreign scholars who made use of ground penetrating radar technology to detect the soil pollution.We indicate that taking the soil dielectric constant as the link,it is possible to obtain the dielectric constant from the GPR echo signal by adopting appropriate methods,through the nerve network technology to domesticate and establish the relationship between the dielectric constant and various kinds of parameters in the contaminated soil,so that to actualize the quantitative measurements of many kinds of pollutant contents in the contaminated soil.