Research Equipment Grant: Instrumentation For Space-Time Interferometry, and Imaging in Composite Materials and Random Media

项目编号：ECS-9622471项目负责人：Yasuo Kuga/University of Washington标题：研究设备补助金：用于复合材料和随机介质的时空干涉测量和成像仪器摘要：这是一项用于购买光学和微波设备的研究设备补助金，用于开发广义时空干涉测量的实验技术和系统。这包括脉冲的时频相关，角和偏振相关的空间干扰，以及后向散射的相干干扰。由于有限的信噪比、关键部件的不可用性以及光学系统中缺乏调制能力，PI目前的系统不足以满足当前和未来的需求。所要求的设备，一个通用宽带微波放大器，微波元件和一个光学EO调制器，将消除这些限制，并将极大地加强PI的NSF资助的遥感研究工作。特别是光学EO调制器是将现有系统转换为时空干涉测量所必需的。几个项目将利用增强的实验能力：(i)随机介质的超宽带散射；（ii）随机介质中物体的角极化相关性和成像；（iii）增强的后向散射和共振定位；（iv）复合材料的表征。该设备还将由几个多学科研究小组与电磁与遥感实验室合作使用，该实验室有6名教职员工和20多名研究生。

Proposal Number: ECS-9622471 Principal Investigator: Yasuo Kuga/University of Washington Title: Research Equipment Grant: Instrumentation for Space-time Interferometry and Imaging in Composite Materials and Random Media Abstract This is a Research Equipment Grant for purchase of optical and microwave equipment which will be used for development of experimental techniques and systems for generalized space-time interferometry. This includes the time-frequency correlation for pulse, spatial interference for angular and polarization correlations, and coherent interference for backscattering. The PI's present systems are inadequate for present and future needs because of limited signal to noise ratio, unavailability of key components, and lack of modulation capability in the optical systems. The requested equipment, a general purpose wideband microwave amplifier, microwave components and an optical EO amplitude modulator, will remove these restraints and will great enhance the PI's NSF sponsored research effort in remote sensing. Especially the optical EO modulator is essential for converting the present system for space-time interferometry. Several projects will utilize the enhanced experimental capability: (i) ultrawideband scattering by random media (ii) angular polarization correlations and imaging of objects in random media (iii) enhanced backscattering and resonant location and (iv) characterization of composite materials. The equipment will also be used by several multidisciplinary research groups in collaboration with the Electromagnetic and Remote Sensing Laboratory, which has 6 faculty members and more than 20 graduate students.