Active Incoherent Millimeter-Wave (AIM) Imaging

主动非相干毫米波 (AIM) 成像

基本信息

批准号：
1708820
负责人：
Jeffrey Nanzer
金额：
$ 38万
依托单位：
Michigan State University
依托单位国家：
美国
项目类别：
Standard Grant
财政年份：
2017
资助国家：
美国
起止时间：
2017-08-01 至 2021-07-31
项目状态：
已结题

来源：
https://www.nsf.gov/awardsearch/showAward?AWD_ID=1708820&HistoricalAwards=false
关键词：
Active Incoherent Millimeter Wave AIM

项目摘要

The use of millimeter-wave technology for imaging and remote sensing has expanded significantly in recent years. Due to the small size of millimeter-wave antennas and electronics combined with the ability of millimeter-wave propagation through fog, smoke, clothing, and some building materials, millimeter-wave sensors are becoming critically important tools in areas such as security sensing, medical imaging, autonomous vehicle sensing, and scientific research. Millimeter-wave imaging furthermore enables imaging and sensing in an electromagnetic regime that is presently underutilized, and is thus becoming increasingly important in the areas stated above. Antenna arrays in particular are becoming of greater interest due to their smaller size and greater flexibility than mechanically-scanned millimeter-wave imagers. This project will develop a new method of millimeter-wave array imaging called active incoherent imaging. The proposed incoherent imaging approach has the potential to significantly reduce the cost of millimeter-wave and sub-millimeter-wave imaging without sacrificing image resolution. Furthermore, the image quality of the proposed approach does not degrade significantly even if part of the receiver array elements fail, which improves its long-term utility over pixel-based imaging methods. The results of this project will enable millimeter-wave imagers to become more accessible to society and to be easily implemented in a broad range of applications. Furthermore, the results of this research will be used to enhance existing courses and develop new courses in radar and millimeter-wave technology at Michigan State University. Combining aspects of sparse array theory and spatial frequency sampling, the proposed active incoherent millimeter-wave imaging utilizes a spatio-temporal incoherent transmitter array combined with a sparse, coherent receiver array. While resolution is the primary limiting factor in millimeter-wave imaging in many applications, sparse receiver arrays using spatial frequency sampling can be utilized to generate images with resolution equivalent to a fully filled array with at least an order of magnitude fewer elements. Incoherent imaging has the additional benefit of improved efficiency because fewer receiver elements are needed and incoherent transmitter arrays are more energy efficient to implement than coherent transmitter arrays. This project will also investigate a novel modular packaging format, where individual transceiver chips are wirelessly phase locked and the received data is wirelessly downlinked. This distributed approach enables the new imaging method to be directly scalable and easily implemented in future millimeter-wave imaging systems.

近年来，将毫米波技术用于成像和遥感已大大扩展。由于毫米波天线和电子设备的尺寸较小，再加上通过雾，烟雾，衣服和某些建筑材料传播的能力，因此在安全性传感，医学成像，自主汽车传感和科学研究等领域，毫米波传感器正在变得非常重要。毫米波成像还可以在目前未充分利用的电磁状态下进行成像和传感，因此在上述地区变得越来越重要。与机械扫描的毫米波成像仪相比，由于天线阵列的尺寸较小，而且灵活性更大，因此天线阵列尤其引起人们的兴趣。该项目将开发一种称为主动不连贯成像的新方法的新方法。所提出的不连贯成像方法具有显着降低毫米波和亚毫米波成像的成本，而无需牺牲图像分辨率。此外，即使部分接收器阵列元素失败，提出的方法的图像质量也不会显着降解，从而改善了其长期实用性，而不是基于像素的成像方法。该项目的结果将使毫米波成像仪能够更容易被社会访问，并在广泛的应用程序中轻松实施。此外，这项研究的结果将用于增强现有课程并在密歇根州立大学开发雷达和毫米波技术的新课程。将稀疏阵列理论和空间频率采样的各个方面结合在一起，提出的主动不一致的毫米波成像利用了时空不一致的发射器阵列，结合了稀疏，相干的接收器阵列。虽然分辨率是许多应用中毫米波成像中的主要限制因子，但使用空间频率采样的稀疏接收器阵列可用于生成具有分辨率相当于完全填充阵列的图像，至少较小的元素。不一致的成像具有提高效率的额外好处，因为需要更少的接收器元素，而不连贯的发射器阵列比相干发射器阵列更有效地实施。该项目还将调查一种新型的模块化包装格式，该格式在该格式中无线地锁定单个收发器芯片，并且接收到的数据被无线下链接。这种分布式方法使新的成像方法可以直接扩展，并且可以轻松地在未来的毫米波成像系统中实现。

项目成果

期刊论文数量（20）

专著数量（0）

科研奖励数量（0）

会议论文数量（0）

专利数量（0）

Active Incoherent Millimeter-Wave Imaging of Dielectric Objects

电介质物体的主动非相干毫米波成像

DOI：
10.1109/ieeeconf35879.2020.9329854
发表时间：
2020
期刊：
2020 IEEE International Symposium on Antennas and Propagation and North American Radio Science Meeting
影响因子：
0
作者：
Vakalis, Stavros;Gong, Liang;Papapolymerou, John;Nanzer, Jeffrey A.
通讯作者：
Nanzer, Jeffrey A.

An Active Microwave Imaging Technique Using Spatial Frequency Sampling

使用空间频率采样的主动微波成像技术

DOI：
10.1109/mwsym.2018.8439274
发表时间：
2018
期刊：
IEEE International Microwave Symposium
影响因子：
0
作者：
Vakalis, Stavros;Nanzer, Jeffrey A.
通讯作者：
Nanzer, Jeffrey A.

Transmit Pattern Analysis for Active Incoherent Microwave Imaging

有源非相干微波成像的传输模式分析

DOI：
10.1109/apusncursinrsm.2019.8888450
发表时间：
2019
期刊：
2019 IEEE International Symposium on Antennas and Propagation and USNC-URSI Radio Science Meeting
影响因子：
0
作者：
Vakalis, Stavros;Nanzer, Jeffrey A.
通讯作者：
Nanzer, Jeffrey A.

An Information-Theoretic Approach to Waveform Design for Active Incoherent Microwave Imaging