SBIR Phase II: Precision Reflectometer Applied to Detect Plastic Land Mines

这一小企业创新研究第二阶段项目将展示一种精确的雷达反射计的概念，该反射计作为一种手持式地雷探测器，用于测量由模糊的异常现象（埋在地下的塑料地雷）引起的反射的微小变化。 一个单基地雷达用一个小脚印准直天线波束阵列依次照射搜索区域。 天线覆盖区的设计接近最小的地雷尺寸，以提高探测能力。 当阵列在地面上扫描时，当相邻天线波束之间的反射信号有小的变化时，就实现了检测。 对来自每个天线的矢量信号进行处理，以生成标准的双轴方向图，该方向图改善了对目标位置、大小和形状的估计。 雷达频率（500至900兆赫）的选择是为了获得良好的地面穿透能力，并使用移动电话部件以保持电力消耗和低成本-据估计，在60多个国家中有1.2亿多枚被遗弃的地雷，每年炸死10，000名儿童和成人，炸伤数千人。 探雷器有两个商业机会，即军事探雷和人道主义排雷。

This Small Business Innovative Research Phase II project is to demonstrate the concept of a precise radar reflectometer implemented as a hand held mine detector to measure a very small change in reflection caused by an obscured anomaly (buried plastic land mine). A monostatic radar sequentially illuminates the search area with an array of small foot print collimated antenna beams. The antenna footprint is designed to approach the smallest mine size to improve detection. Detection is realized when there is a small change in the reflected signal between adjacent antenna beams as the array is scanned over the ground. The vector signal from each antenna is processed to generate the standard dual axis direction finding pattern that improves the estimates of target location, size and shape. The radar frequency (500 to 900 MHz) is selected to obtain good penetration of the ground and to use cellular telephone components to keep the power drain and cost low- It is estimated there are over 120 million mines abandoned in more than 60 countries, killing 10,000 children and adults every year and maiming thousands more. There are two commercial opportunities for the mine detector, military mine detection and humanitarian mine clearing.