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2007 4th International Workshop on, Advanced Ground Penetrating Radar最新文献

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Look-Ahead Radar and Horizon Sensing for Coal Cutting Drums 采煤滚筒前视雷达与地平线传感
2007 4th International Workshop on, Advanced Ground Penetrating Radar Pub Date : 2007-06-27 DOI: 10.1109/AGPR.2007.386553
I. Y. Bausov, G. L. Stolarczyk, L. Stolarczyk, Sc.D. S. Koppenjan
{"title":"Look-Ahead Radar and Horizon Sensing for Coal Cutting Drums","authors":"I. Y. Bausov, G. L. Stolarczyk, L. Stolarczyk, Sc.D. S. Koppenjan","doi":"10.1109/AGPR.2007.386553","DOIUrl":"https://doi.org/10.1109/AGPR.2007.386553","url":null,"abstract":"Safe and efficient coal extraction requires advanced radar subsystems that can be mounted on cutting drums of coal mining machines. A look-ahead radar (LAR) must solve the radio geophysics problem of transmitting an electromagnetic (EM) wave through at least 6.1 m (20 ft) of coal to detect an air- or water-filled void. An up- or down-looking radar must determine the distance to the coal bed sedimentary rock boundary. The reflected EM wave from the void or boundary rock must be processed in real time in the radar electronics to determine the physical distance to the void or coal bed boundary. The distance determination requires the in situ measurement of the coal electrical conductivity or relative dielectric constant. Up or down (horizon) sensing enables selective cutting near the undulating sedimentary rock boundaries of the coal bed to address coal quality and ground control issues. Both sensors require subsystems for dynamic electric power generation, real-time measurement of antenna rotation angle, detection of weak coal-boundary reflected EM waves concurrently with the suppression of the significant larger first air-coal reflected wave, processing to determine distance through coal, and RF modem transmission of measured data from the cutting drum to the body of the mining machine and along the segmented or coiled-tubing drill pipe. This paper describes the development of the GPR subsystems and field test results.","PeriodicalId":411104,"journal":{"name":"2007 4th International Workshop on, Advanced Ground Penetrating Radar","volume":"38 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2007-06-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126920451","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: 14
Advanced forward modeling and tomographic inversion for leaking water pipes monitoring 泄漏水管监测的先进正演模拟与层析反演
2007 4th International Workshop on, Advanced Ground Penetrating Radar Pub Date : 2007-06-27 DOI: 10.1109/AGPR.2007.386538
L. Crocco, G. Prisco, F. Soldovieri, N. Cassidy
{"title":"Advanced forward modeling and tomographic inversion for leaking water pipes monitoring","authors":"L. Crocco, G. Prisco, F. Soldovieri, N. Cassidy","doi":"10.1109/AGPR.2007.386538","DOIUrl":"https://doi.org/10.1109/AGPR.2007.386538","url":null,"abstract":"The timely detection of damage and leakage from pipelines is of extreme importance both environmentally and from a economic perspective. Accordingly, we address the problem of imaging leaking pipes by exploiting single-fold, multi-receiver GPR data. In particular, we devise a tomographic imaging method which, taking advantage of the available knowledge on the investigated 'scenario' (pipe position and size), allows us to detect the presence of a leakage already in its first stages of development. In order to properly design the features of the imaging approach, and test its capabilities in controlled conditions, we make use of synthetic data generated with an advanced full-wave 2.5D Finite-Difference Time-Domain forward modeling solver capable of accurately simulating real world GPR scenarios. Numerical examples obtained in this way show the effectiveness of the developed imaging method.","PeriodicalId":411104,"journal":{"name":"2007 4th International Workshop on, Advanced Ground Penetrating Radar","volume":"10 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2007-06-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121572555","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: 12
The inspection of large retaining walls using GPR 探地雷达对大型挡土墙的检测
2007 4th International Workshop on, Advanced Ground Penetrating Radar Pub Date : 2007-06-27 DOI: 10.1109/AGPR.2007.386565
J. Hugenschmidt, R. Mastrangelo
{"title":"The inspection of large retaining walls using GPR","authors":"J. Hugenschmidt, R. Mastrangelo","doi":"10.1109/AGPR.2007.386565","DOIUrl":"https://doi.org/10.1109/AGPR.2007.386565","url":null,"abstract":"In hilly regions, retaining walls along roads and motorways are numerous. In some cases the knowledge of the details of the construction is limited. If rehabilitation work becomes necessary, a detailed knowledge of all details of the construction is desirable for an improved planning In a pilot study a GPR inspection of retaining walls was carried out. This included the development of an apparatus for the controlled positioning of the radar antennas on the faces of the walls as well as an evaluation of different antennas and acquisition parameters for this application. This paper describes the approach for data acquisition, acquisition and processing parameters and the results obtained on a retaining wall situated at a Swiss motorway.","PeriodicalId":411104,"journal":{"name":"2007 4th International Workshop on, Advanced Ground Penetrating Radar","volume":"94 6","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2007-06-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132154411","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: 7
Masonry investigation through Very Large Bandwidth CW-SF radar 基于甚大带宽CW-SF雷达的砌体研究
2007 4th International Workshop on, Advanced Ground Penetrating Radar Pub Date : 2007-06-27 DOI: 10.1109/AGPR.2007.386528
M. Pieraccini, F. Parrini, L. Noferini, C. Atzeni
{"title":"Masonry investigation through Very Large Bandwidth CW-SF radar","authors":"M. Pieraccini, F. Parrini, L. Noferini, C. Atzeni","doi":"10.1109/AGPR.2007.386528","DOIUrl":"https://doi.org/10.1109/AGPR.2007.386528","url":null,"abstract":"In this paper, a number of experimental tests aimed to evaluate the potential of Very Large Bandwidth Continuous Wave Step Frequency (CW-SF) radar for investigating masonry structures, are reported. Furthermore, an innovative polarimetric technique able to detect the double-bounce signal due to corner inside a masonry is proposed and tested.","PeriodicalId":411104,"journal":{"name":"2007 4th International Workshop on, Advanced Ground Penetrating Radar","volume":"7 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2007-06-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129090218","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: 0
Development of the Hand held dual sensor ALIS and its evaluation 手持双传感器ALIS的研制及其评价
2007 4th International Workshop on, Advanced Ground Penetrating Radar Pub Date : 2007-06-27 DOI: 10.1109/AGPR.2007.386514
M. Sato, K. Takahashi, J. Fujiwara
{"title":"Development of the Hand held dual sensor ALIS and its evaluation","authors":"M. Sato, K. Takahashi, J. Fujiwara","doi":"10.1109/AGPR.2007.386514","DOIUrl":"https://doi.org/10.1109/AGPR.2007.386514","url":null,"abstract":"GPR has been thought a useful sensor for detection of buried land mines, but no GPR has been practically deployed in humanitarian demining. Since 2002, we have developed a new hand-held land mine detection dual-sensor ALIS. ALIS is equipped with a metal detector and a GPR, and it has a sensor tracking system, which can record the GPR and Metal detector signal with its location. It makes possible to process the data afterwards, including migration. The migration processing drastically increases the quality of the image of the buried objects. ALIS uses two different GPR systems, namely VNA (Vector Network Analyzer) based GPR and an Impulse GPR. VNA based GPR can provide better quality GPR images, although the impulse GPR is faster and light weight. ALIS evaluation tests have been held in mine affected courtiers including Afghanistan, Croatia, Egypt and Cambodia. In the two-month evaluation test in Cambodia, ALIS worked without any problem. After some demonstrations and evaluation, we got many useful suggestions. Using these advises, we have modified the ALIS and it is now more easy to use. ALIS will be commercialized in 2007.","PeriodicalId":411104,"journal":{"name":"2007 4th International Workshop on, Advanced Ground Penetrating Radar","volume":"28 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2007-06-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132970072","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: 26
Geophysical investigations in the Castle of Crotone (Calabria Region, Italy) 克罗托内城堡(意大利卡拉布里亚地区)的地球物理调查
2007 4th International Workshop on, Advanced Ground Penetrating Radar Pub Date : 2007-06-27 DOI: 10.1109/AGPR.2007.386529
M. Bavusi, A. Giocoli, E. Rizzo, V. Lapenna
{"title":"Geophysical investigations in the Castle of Crotone (Calabria Region, Italy)","authors":"M. Bavusi, A. Giocoli, E. Rizzo, V. Lapenna","doi":"10.1109/AGPR.2007.386529","DOIUrl":"https://doi.org/10.1109/AGPR.2007.386529","url":null,"abstract":"This work is about geophysical investigations carried out in the Carlo V king's castle, in Crotone village (Calabria Region, Italy). A magnetic method (M), ground penetrating radar (GPR) and electrical resistivity tomography (ERT) surveys have been used to locate buried remains and old walkway. Each interesting area was investigated with a map survey, which is obtained acquired along several parallel profiles. Therefore, a 2D magnetic maps and a 3D GPR and resistivity data have been obtained. Finally, the ERT and GPR results showed some features associated to buried military walkway.","PeriodicalId":411104,"journal":{"name":"2007 4th International Workshop on, Advanced Ground Penetrating Radar","volume":"100 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2007-06-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115738304","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: 0
Low Frequency GPR in Difficult Terrain 低频探地雷达在困难地形
2007 4th International Workshop on, Advanced Ground Penetrating Radar Pub Date : 2007-06-27 DOI: 10.1109/AGPR.2007.386527
M. Carnevale, J. Hager
{"title":"Low Frequency GPR in Difficult Terrain","authors":"M. Carnevale, J. Hager","doi":"10.1109/AGPR.2007.386527","DOIUrl":"https://doi.org/10.1109/AGPR.2007.386527","url":null,"abstract":"Many subsurface investigations are requested in areas unsuitable for most geophysical methods. In some instances, difficult terrain prevents surface coupling with transmitters, receivers, or other instrumental components. In other instances, such as in urban areas, spatial restrictions prohibit the use of seismic methods. Ground penetrating radar (GPR) is one method that can be used to attempt data collection in these difficult areas. In this paper, we will demonstrate the application of low frequency GPR to map a sloping bedrock surface configuration in an urban setting with the aforementioned site limitations. The sloping bedrock surface with a relief of approximately 21.5 meters underlies a stabilized slide area resulting from a failed retaining wall. 40-MHz and 100-MHz antenna systems were employed on boulder rip-rap (used to stabilize the slide area) and within an apartment house complex. Seismic refraction and surface wave investigations were performed to help constrain the GPR data interpretation and to provide bedrock integrity information.","PeriodicalId":411104,"journal":{"name":"2007 4th International Workshop on, Advanced Ground Penetrating Radar","volume":"9 12 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2007-06-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131919854","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
Localization of thin metallic scatterers by experimental data 基于实验数据的薄金属散射体定位
2007 4th International Workshop on, Advanced Ground Penetrating Radar Pub Date : 2007-06-27 DOI: 10.1109/AGPR.2007.386536
R. Solimene, A. Brancaccio, J. Romano, R. Pierri
{"title":"Localization of thin metallic scatterers by experimental data","authors":"R. Solimene, A. Brancaccio, J. Romano, R. Pierri","doi":"10.1109/AGPR.2007.386536","DOIUrl":"https://doi.org/10.1109/AGPR.2007.386536","url":null,"abstract":"The problem of detecting and localizing \"small\" scatterers by the knowledge of the field scattered under a known illumination is dealt with. According to the distributional model shown in Ref. [2], the problem is cast as the inversion of a linear integral operator acting on 6-distributions whose supports are representative of the scatterers' locations. In this paper, we present some experimental results of such an approach. To this end, we perform the reconstructions by exploiting experimental scattered field data collected in controlled conditions at the Electromagnetic Diagnostic Laboratory of the Second University of Naples. The multi-static/single-view/multi-frequency and the multi-static/multi-view/multi-frequency configurations are both considered.","PeriodicalId":411104,"journal":{"name":"2007 4th International Workshop on, Advanced Ground Penetrating Radar","volume":"51 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2007-06-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127517092","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: 1
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