CAREER: Microwave Nondestructive Testing

建议书编号：ECS-9624785主要研究员：韩秀才微波无损探伤研究先进的微波无损探伤将用于土木工程结构和现代复合材料的检验。将开展以下几个方面的工作：(1)应用理论模型正确描述由小规模随机不均匀和大规模确定性结构组成的复杂结构中的散射过程；(2)开发自适应相干微波成像算法，以有效地获取宿主介质的性质、结构信息以及任何埋入缺陷的位置和特征；以及(3)利用探测概率概念来测量在规定条件下微波检测的有效性和可靠性。本研究的意义在于，系统地整合了微波遥感和数据处理研究的前沿知识，构建了一套实用的微波成像系统。该计划的最终贡献将是维护老化的国家物理基础设施，并通过提高美国制造商的质量保证和过程控制能力来保持其领先地位。

Proposal Number: ECS-9624785 Principal Investigator: Hsiu C. Han Microwave Nondestructive Testing Research in advanced microwave nondestructive testing for the inspection of civil engineering structures and modern composite materials will be performed. The following aspects will be developed (1) application of theoretical models to properly characterize the scattering process in complex constructions consisting of both small-scale random inhomogeneities and large-scale deterministic structures; (2) development of an adaptive coherent microwave imaging algorithm to efficiently retrieve host medium properties, structural information and the locations and characteristics of any embedded defects; and (3) employment of the probability of detection concept to measure the effectiveness and reliability of microwave inspection under the prescribed conditions. The significance of the proposed research is that it systematically integrates the knowledge in the forefront of microwave remote sensing and data processing research to construct a practical microwave imaging system. The ultimate contributions that will be made by this program are to the upkeep of the aging national physical infrastructure as well as maintaining the leading position of U.S. manufacturers through improving their capability of quality assurance and process control.