SBIR Phase I: A High Frequency Beam Steered Electromagnetic Impulse Radar to Locate Human Targets Through Opaque Media

这个小型企业创新研究(SBIR)第一阶段项目将研究波束导引电磁雷达，使用差分同步信号路径切换(DSSPS)来提高可操作频率和目标分辨率。这项研究还将确定在离开不透明介质时的有效成像波束折射，在下行距离剖面中对人体目标进行分类的可行性，以及将分形几何应用到蝴蝶结天线以减少振铃的可行性。第一阶段将产生一个紧凑的系统，能够穿透厚厚的不透明材料，使用高频来定位目标，否则由于衰减和电子延迟方法的转向限制，该领域被预留为低频率。潜在的商业应用预计在电磁应用中用于地下特征检测，包括空洞、污染物、危险废物容器、水文-岩性界面、埋在地下的公用事业的位置，以及通过不透明材料如建筑物、泥土、岩石和雪来定位人类目标。高频阵列的较小尺寸为后一种应用提供了便携性。

This Small Business Innovation Research (SBIR) Phase I project will investigate beam steered electromagnetic radar using differential synchronization signal path switching (DSSPS) to increase the operable frequency and target resolution. The research will also determine the effective imaging beam refraction as it exits opaque media, the feasibility of classifying human targets in the downrange profile, and the feasibility of implementing fractal geometries into bow-tie antennas to reduce ringing. Phase I will result in a compact system capable of penetrating thick opaque materials using high frequencies to locate targets in an arena that is otherwise reserved for low frequencies because of attenuation and the steering limitations of electronic delay methods.Potential commercial applications are expected in electromagnetic application for subsurface feature detection, including voids, contaminants, hazardous waste containers, hydrologic-lithologic interfaces, the location of buried utilities, and for locating human targets through opaque materials such as buildings, earth, rock, and snow. The smaller size of a high frequency array offers portability for the latter application.