2013 7th International Workshop on Advanced Ground Penetrating Radar最新文献_第3页

Applications of a reconfigurable stepped frequency GPR in the chapel of the Holy Spirit, Lecce (Italy) 可重构阶跃频率探地雷达在意大利莱切圣灵教堂的应用

2013 7th International Workshop on Advanced Ground Penetrating Radar Pub Date : 2013-07-02 DOI: 10.1109/IWAGPR.2013.6601532

R. Persico, G. Leucci, D. Dei, F. Parrini, M. Pieraccini, L. Matera, M. Ciminale

引用次数: 5

Quantifying GPR transient waveforms in the intermediate zone 中间区域探地雷达瞬态波形的量化

2013 7th International Workshop on Advanced Ground Penetrating Radar Pub Date : 2013-07-02 DOI: 10.1109/IWAGPR.2013.6601508

N. Diamanti, P. Annan, D. Redman

引用次数: 10

GPR case histories and known physical principles 探地雷达的历史和已知的物理原理

2013 7th International Workshop on Advanced Ground Penetrating Radar Pub Date : 2013-07-02 DOI: 10.1109/IWAGPR.2013.6601507

D. J. Daniels, Erika Utsi

{"title":"GPR case histories and known physical principles","authors":"D. J. Daniels, Erika Utsi","doi":"10.1109/IWAGPR.2013.6601507","DOIUrl":"https://doi.org/10.1109/IWAGPR.2013.6601507","url":null,"abstract":"The physics and technology of ground penetrating radar [GPR] and its ability to detect buried targets are well understood and proven even though the underlying physics and engineering are not simple. Its performance can be predicted with some accuracy given information on the characteristics of the soil and target. Where new developments in GPR can demonstrate proven outcomes within a framework of statistically based evidence and procedures, as well as known science and engineering methodology, then prospective end users can be confident in their use. However, some performance claims that need very careful scrutiny are proposed by certain operators. These claims are usually quickly discounted by the well informed, but appear plausible to the less knowledgeable and it is the aim of this paper to help end-users ask the right questions. The promise of “new” scientific breakthroughs, even where these remain unproven using the normal scientific procedures and in some cases transcend known physics, can mislead those unfamiliar with the proven science and technology underlying GPR. This paper very briefly reviews the fundamental physics of ground penetrating radar and methods of establishing whether or not it will accomplish a given goal. Several examples of claims regarding ground penetrating radar are described as well as the criteria against which new techniques are normally assessed. The paper concludes with a simple check list that could be applied by those about to consider the acquisition or use of ground penetrating services or equipment.","PeriodicalId":257117,"journal":{"name":"2013 7th International Workshop on Advanced Ground Penetrating Radar","volume":"64 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2013-07-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122624208","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 5

Intrinsic modeling of radar antennas: From far-field to near-field conditions 雷达天线的固有建模:从远场到近场条件

2013 7th International Workshop on Advanced Ground Penetrating Radar Pub Date : 2013-07-02 DOI: 10.1109/IWAGPR.2013.6601520

S. Lambot, A. Tran, F. André

{"title":"Intrinsic modeling of radar antennas: From far-field to near-field conditions","authors":"S. Lambot, A. Tran, F. André","doi":"10.1109/IWAGPR.2013.6601520","DOIUrl":"https://doi.org/10.1109/IWAGPR.2013.6601520","url":null,"abstract":"We p resent an intrinsic way for modeling radar antennas operating in near-field conditions for wave propagation in planar layered media. Fundamental antenna features consist of an equivalent set of infinitesimal electric dipoles, field points and associated global reflection and transmission coefficient functions. These antenna characteristic functions permit to describe wave propagation between the radar reference plane and the equivalent source dipoles and field points. Near-field antenna-medium coupling is inherently accounted for and the antenna characteristics do not depend on the medium. We show an example of application in which the dielectric permittivity of a sand subject to a range of water contents is estimated from measurements collected with a vector network analyzer connected to a Vivaldi antenna. A very close agreement between the measurements and the model was obtained and the retrieved permittivities were very well consistent with the corresponding water contents. The proposed method shows great promise for digital soil mapping using ground-penetrating radar (GPR) and non-destructive testing of materials.","PeriodicalId":257117,"journal":{"name":"2013 7th International Workshop on Advanced Ground Penetrating Radar","volume":"17 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2013-07-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129083972","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 2

Road inspection using full-wave inversion of far-field ground-penetrating radar data 利用远场探地雷达数据全波反演道路检测

2013 7th International Workshop on Advanced Ground Penetrating Radar Pub Date : 2013-07-02 DOI: 10.1109/IWAGPR.2013.6601522

M. R. Mahmoudzadeh, J. Got, S. Lambot, C. Grégoire

{"title":"Road inspection using full-wave inversion of far-field ground-penetrating radar data","authors":"M. R. Mahmoudzadeh, J. Got, S. Lambot, C. Grégoire","doi":"10.1109/IWAGPR.2013.6601522","DOIUrl":"https://doi.org/10.1109/IWAGPR.2013.6601522","url":null,"abstract":"Inspecting how robustly and safely the roads are built in order to develop better methods for both design and quality control of materials is an important task in road engineering. In this research we studied the potential of full-wave model of Lambot et al. 2004 for far-field ground-penetrating radar (GPR) configuration in order to retrieve the physical and electromagnetic properties of the road, including both asphalt and subbase layers. Two different GPR systems, namely, stepped frequency GPR and impulse GPR systems were used to collect data along a 50 m long transect. Accurate positioning was performed using a dGPS and a survey wheel. Both GPR data sets were processed using GPR full-wave inversion in the time domain focusing on the asphalt and subbase reflections. Comparison of the results from both GPR systems showed a good agreement between them. In addition, results showed that a compacted zone on the road leads to a compaction feature influenced the retrieved road parameters. The proposed radar data processing method demonstrated a strong potential of the GPR full-wave model to be used for quantitative road inspection.","PeriodicalId":257117,"journal":{"name":"2013 7th International Workshop on Advanced Ground Penetrating Radar","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2013-07-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125872228","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 10

Sub millimeter resolution GPR 亚毫米分辨率探地雷达

2013 7th International Workshop on Advanced Ground Penetrating Radar Pub Date : 2013-07-02 DOI: 10.1109/IWAGPR.2013.6601541

V. Utsi

引用次数: 0

Use of electromagnetic non-destructive techniques for monitoring the chloride ingress into concrete 使用电磁无损技术监测氯化物进入混凝土的情况

2013 7th International Workshop on Advanced Ground Penetrating Radar Pub Date : 2013-07-02 DOI: 10.1109/IWAGPR.2013.6601542

G. Villain, R. du Plooy, A. Ihamouten, S. Palma-Lopes, B. Thauvin, Xavier Dérobert

引用次数: 23

Towards physically-based filtering of the soil surface, antenna and coupling effects from near-field GPR data for improved subsurface imaging 基于土壤表面物理滤波的近场GPR数据天线和耦合效应改进地下成像

2013 7th International Workshop on Advanced Ground Penetrating Radar Pub Date : 2013-07-02 DOI: 10.1109/IWAGPR.2013.6601524

L. Mertens, A. Tran, S. Lambot

{"title":"Towards physically-based filtering of the soil surface, antenna and coupling effects from near-field GPR data for improved subsurface imaging","authors":"L. Mertens, A. Tran, S. Lambot","doi":"10.1109/IWAGPR.2013.6601524","DOIUrl":"https://doi.org/10.1109/IWAGPR.2013.6601524","url":null,"abstract":"Physically-based filtering of antenna effects in far-field conditions, including antenna-ground interactions, can be performed using intrinsic antenna modeling based on antenna global reflection and transmission coefficients. This has been in particular validated for frequency domain radars for quantitative reconstruction of layered media using full-wave inversion and improved subsurface imaging. In this paper, we further extend the concept to time domain radars for which the source is not separated from the antenna characteristics. Then, we provide insights on the application of the method to near-field conditions. Radar measurements were performed with the antenna at different heights over a perfect electrical conductor (PEC) and on a sandy soil with buried targets. For the PEC measurements, far-field filtering performed very well and also provided relatively good results in near-field conditions, except for the shortest range. Far-field measurements for the sand also provided good results, although the antenna transfer functions had to be corrected to account for the varying time domain radar source (drift). The radar image was not improved for the on-ground radar configuration. Future research will focus on near-field filtering of antenna effects using a recent generalization of the far-field model to near-field conditions.","PeriodicalId":257117,"journal":{"name":"2013 7th International Workshop on Advanced Ground Penetrating Radar","volume":"41 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2013-07-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114579092","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 3

Full 3-D electromagnetic subsurface imaging using ground penetrating radar 利用探地雷达进行全三维电磁地下成像

2013 7th International Workshop on Advanced Ground Penetrating Radar Pub Date : 2013-07-02 DOI: 10.1109/IWAGPR.2013.6601505

I. Catapano, A. Affinito, L. Crocco, G. Gennarelli, F. Soldovieri

引用次数: 3

Ultra wide band TEM horn and reflector antenna designs for down and forward looking ground penetrating radars 超宽带TEM喇叭和反射天线的设计向下和前视探地雷达

2013 7th International Workshop on Advanced Ground Penetrating Radar Pub Date : 2013-07-02 DOI: 10.1109/IWAGPR.2013.6601540

A. S. Turk, A. K. Keskin, Mustafa Dagcan Senturk, A. Magat, M. Ozakin, S. Aksoy

引用次数: 4