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Advances in GPR-based landmine automatic detection 总被引：1，自引：0，他引：1
As an application of mechatronics, this paper presents the advances in surface-adaptive ground penetrating radar (GPR)-based anti-personnel landmine detection project in Nagoya University. These advances can be summarized in three items: (1) GPR manipulation where a low-pressure-tire vehicle capable of moving inside a mine field, to facilitate machine-based sensing in place of manual sensing, is applied; (2) enhancement of underground landmine suspects’ images through geography adaptive scanning and measurements signal processing of a vector frequency modulated continuous wave (FMCW) GPR; (3) GPR fusion with metal detector (MD) for automatic decision making through experimental-based fuzzy learnt fusion rules. The state-of-art of these advances as well as directions for future research work is to be presented. 相似文献
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Baris Gursu Author Vitae Melih Cevdet Ince Author Vitae 《Journal of The Franklin Institute》2009,346(8):768-783
In this paper, an optimum grounding grid that provides the conditions of GPR<Etouch and minimum cost in the structures of two-layer soil model is designed and the length of total conductor and the quantity of ground rod are calculated via Genetic Algorithms (GA). A new approach is presented for the calculation of total conductor length. At the same time, the subject regarding in which layer the ground conductors and rods that form the grounding grid in a substation are to be placed in two-layer soil is analysed using GA. With this as the goal, the depth of optimum grid burial is determined. Our study is compared with the design study for a two-layer soil model in the literature. As a result, the high performance of optimum grid design that is achieved using GA is emphasized by varied applications. 相似文献
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Vega Prez-Gracia Francisco García Lluis G. Pujades Ramn Gonzlez Drigo Daniel Di Capua 《Journal of Cultural Heritage》2008,9(1):89-96
This paper describes the ground-penetrating radar (GPR) survey carried out on the Roman theatre of Sagunto (Valencia, Spain) following recent restoration work in 1991. The structure has been substantially altered a number of times: it was remodelled during the Roman and Moorish periods, partially destroyed during the Peninsular War (1808–1814) and the Carlist War (1833–1839), and extensively modified during the 1930s and 1950s. Major reconstruction work was carried out in 1991 to convert the building into a working theatre. The GPR survey was performed to detect the possible effects of the 1991 remodelling on the historical remains and to identify the point of contact between the present-day modifications and the Roman remains. We took several on-site measurements of the wave velocity in the different materials in known areas to determine as accurately as possible the depth of the contact point. The velocity was calculated by measuring the depth in these areas and the two-way travel time of the wave. The measurements were taken from the walls and the tiers as the thicknesses of the materials were known in these areas. The recorded values were compared with the velocities reported by other authors and with the information from diffraction hyperbolas recorded in the radar data, which are caused by small objects inserted in the medium. We used these velocities to determine the exact point of contact between the Roman remains and the materials used in later restorations. The contact points cause the reflections that can be seen in the GPR data. The results also reveal considerable variations in the surface of the Roman tiers, which can be attributed to partial erosion in these areas caused mainly by water. 相似文献
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在讨论工作流定义、工作流管理系统的组成和应用的基础上,分析了其在政务应用集成中的应用优势,建立了一个基于工作流的政务应用集成框架。这种基于工作流的政务应用集成框架既能有效实现政务系统之间跨越时空、地域和部门的信息集成,又能在人和应用间实现有效协同,最终实现系统的全局优化发展,为政务流程再造（GPR）服务。 相似文献
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文中先简要介绍了宣城水阳江联桥岩溶勘探运用探地雷达方法的可行性。接着详细介绍了探地雷达方法在此次工程中具体应用，并证实了探地雷达在此次工程应用是合理的。 相似文献
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探地雷达作为一种快速高效、高精度的无损检测技术,在勘察中的应用日益成熟。本文以贵州某地区地质勘查为例,介绍探地雷达技术在灰岩地区探测溶洞的应用。 相似文献
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赵常要 《科技成果管理与研究》2008,(4):17-19
探地雷达技术是一种高分辨率的地球物理探测技术,具有无损,高效快捷,高分辨率等特征,本文介绍探地雷达在隧道检测中的应用,并对一些典型雷达波形进行解释和分析。 相似文献
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贾涛 《辽宁科技学院学报》2012,14(3):14-17
文章通过实测控制网及工程放样,在静态观测数据的基准下,以某校园GPS控制网为例,利用徕卡GS15 - GPS接收机进行RTK模式测量控制点坐标,与静态观测数据进行对比分析;同时利用CORS的单基准站模式,测量控制点的坐标,与静态观测数据进行对比分析;通过一系列的实践和对比分析,不仅正确掌握了徕卡GS15 - GPS接收机的操作及应用,而且证明了其精度完全可以满足各项工程的要求. 相似文献
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