单通道毫米波辐射编码成像基本理论与方法研究

项目名称： 单通道毫米波辐射编码成像基本理论与方法研究

项目编号： No.61301213

项目类型： 青年科学基金项目

立项/批准年度： 2014

项目学科： 无线电电子学、电信技术

项目作者： 肖泽龙

作者单位： 南京理工大学

项目金额： 23万元

中文摘要： 本项目针对传统毫米波辐射成像方法中遇到的扫描速度慢、多通道间通道均衡与定标难、系统构成复杂、价格昂贵等问题，结合压缩感知理论，开展单通道毫米波辐射编码成像基本方法和理论研究。研究目标毫米波辐射稀疏表征、单通道毫米波辐射编码成像压缩采样约束以及单通道毫米波辐射编码成像非模糊重构算法等科学问题，建立单通道毫米波辐射编码成像压缩感知分析模型；结合人体违禁物品探测应用，确定压缩采样测量矩阵的约束条件，研究含噪、近似线性系统测量矩阵构造方法，构建单通道毫米波辐射辐射编码成像压缩采样基本理论、数据反演分析模型和稳健快速的非模糊重构算法；同时改进原有试验平台，开展实验方法研究，完成对新体制、新方法的原理性验证，建立系统性能分析评估模型。本项目的研究对于单通道毫米波辐射编码成像实现具有重要理论意义和学术价值，也为毫米波辐射成像在小型化、低成本、高可靠等应用提供理论支持。

中文关键词： 单通道毫米波成像；压缩感知；稀疏表征；编码模板；图像重构

英文摘要： In view of the realistic problem that traditional millimeter-wave (MMW) radiometric imaging technique has deficiencies in low speed scanning, multi-channel equalization and calibration, complex configuration, and high cost for fabricating, this project mainly focuses on the sparse representation of MMW radiometric characteristics, compressive sampling constraint of single-channel MMW radiometric coding imaging, and the corresponding non-fuzzy reconstruction algorithms, in conjunction with the theory of compressive sensing. Meanwhile, a compressive sensing module is put forward for analyzing the MMW radiometric imaging. In addition, referring to the application of concealed contraband detection on personnel, the constraint conditions of compressive sampling measurement matrix is determined, and then the noised and approximate linear measurement matrix are constructed. Moreover, the compressive sampling theory of single-channel MMW radiometric coding imaging, the analysis model of data inversion, and the robust non-fuzzy reconstruction algorithms are also studied. Furthermore, the experimental platform will be modified for verifying the new imaging style. The goal of this research is to set up the theory and methods of single-channel MMW radiometric coding imaging, based upon the combination of MMW radiometric ima

英文关键词： Single-channel millimeter wave imaging；Compressive sensing；Sparse representation；Encoding template；Image reconstruction