SBIR PHASE II: Electronic Beam Steering for Ground Probing Radar

SBIR 第二阶段：地面探测雷达电子波束控制

• 批准号: 9708205
• 负责人: Scott Thompson
• 金额: $ 30.48万
• 依托单位: ChT Engineering Systems
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 1997
• 资助国家: 美国
• 起止时间: 1997-10-01 至 1999-09-30
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=9708205&HistoricalAwards=false
• 关键词: SBIR; PHASE; II; Electronic; Beam

This Small Business Innovation Research (SBIR) Phase II project will develop a marketable beam steering transmitter array for ground probing radar (GPR). Research conducted under Phase I demonstrated feasibility of forming a focused beam, from the superposition of multiple antenna elements, that can be steered to targets beneath the subsurface. Beam steering opens opportunities for enhanced target discrimination, increased depth of penetration, and broader area of coverage from a single location. Through post processing, three-dimensional images may be created of an area under investigation. The beam steered array product will be positioned as a hardware accessory that enhances the operation of existing GPR systems. Therefore, it is important that such an "add-on" be versatile, cheap, easy-to-used, and compatible with as many of the existing GPR systems as possible. In Phase II, testing of a prototype in as many realistic GPR environments as possible will be done to extend capabilities to the operational domain of typical GPR systems. To facilitate analytical understanding of subsurface beam-forming, the Phase II effort will extend the modeling of Phase I (which was done without targets and in an homogeneous subsurface) to more realistic media. The analysis will employ finite difference time-domain methods in order to model more complex media. In addition, refinement of the array hardware and its associated software will be accomplished in order to enhance end-user features. Markets exist in subsurface exploration; geophysical and hydrological studies; location of underground facilities, hazardous wastes, and unexploded ordinance; non invasive exploration of subsurface tunnel systems such as mining tunnels and subway systems; detection of fluid front migration from underground spills; and large areas surveys (added coverage from beam steering). This award is supported by the SBIR Program and the Experimental Program to Stimulate Competitive Research (EPSCOR).

这项小型企业创新研究（SBIR）II期项目将开发可销售的梁转向发射器阵列，用于地面探测雷达（GPR）。 在第一阶段进行的研究表明，从多个天线元件的叠加中形成聚焦梁的可行性，可以将其转向地下下方的靶向。 光束转向开放了增强目标歧视，渗透深度的增加以及单个位置覆盖范围更广泛的机会。 通过后处理，可以创建有关正在研究的区域的三维图像。 光束转向阵列产品将被定位为硬件配件，可增强现有GPR系统的操作。 因此，重要的是，这样的“附加组件”是通用，便宜，易于使用的，并且与尽可能多的现有GPR系统兼容。 在第二阶段，将在尽可能多的现实GPR环境中测试原型，以将功能扩展到典型GPR系统的操作领域。 为了促进对地下梁形成的分析理解，II阶段的工作将扩展I期（无目标和均匀地下）的建模到更真实的介质。 该分析将采用有限的差异时间域方法来对更复杂的介质进行建模。 此外，将完成阵列硬件及其相关软件的细化，以增强最终用户功能。 地下探索中存在市场；地球物理和水文研究；地下设施，危险废物和未爆炸条例的位置；非侵入性探索地下隧道系统，例如采矿隧道和地铁系统；从地下溢出物检测流体前迁移；和大面积调查（横梁转向的覆盖范围）。 该奖项得到了SBIR计划和刺激竞争研究的实验计划的支持（EPSCOR）。