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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，毫米波技术在成像和遥感方面的应用已大大扩展。由于毫米波天线和电子器件的小尺寸以及毫米波通过雾、烟雾、服装和一些建筑材料传播的能力，毫米波传感器正在成为安全传感、医学成像、自动驾驶汽车传感和科学研究等领域的重要工具。毫米波成像还使得能够在目前未充分利用的电磁机制中进行成像和感测，并且因此在上述领域中变得越来越重要。特别是天线阵列由于其比机械扫描毫米波成像仪更小的尺寸和更大的灵活性而变得更受关注。本项目将开发一种新的毫米波阵列成像方法，称为主动非相干成像。所提出的非相干成像方法具有在不牺牲图像分辨率的情况下显著降低毫米波和亚毫米波成像的成本的潜力。此外，所提出的方法的图像质量不会显着降低，即使部分接收器阵列元件失败，这提高了其长期效用基于像素的成像方法。该项目的成果将使毫米波成像仪更容易为社会所用，并易于在广泛的应用中实施。此外，这项研究的结果将用于加强现有的课程，并在密歇根州立大学雷达和毫米波技术开发新的课程。结合稀疏阵列理论和空间频率采样方面，所提出的主动非相干毫米波成像利用与稀疏相干接收器阵列相结合的时空非相干发射器阵列。虽然在许多应用中分辨率是毫米波成像中的主要限制因素，但是可以利用使用空间频率采样的稀疏接收器阵列来生成分辨率等于具有至少一个数量级的更少元件的完全填充阵列的图像。非相干成像具有提高效率的额外益处，因为需要更少的接收器元件，并且非相干发射器阵列比相干发射器阵列实现起来更节能。该项目还将研究一种新型的模块化封装格式，其中单个收发器芯片被无线锁相，接收到的数据被无线下行链路传输。这种分布式方法使新的成像方法能够直接扩展，并易于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）

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.

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

DOI：
10.1109/cama.2018.8530633
发表时间：
2018-09
期刊：
2018 IEEE Conference on Antenna Measurements & Applications (CAMA)
影响因子：
0
作者：
Stavros Vakalis;J. Nanzer
通讯作者：
Stavros Vakalis;J. Nanzer

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.

Toward Space–Time Incoherent Transmitter Design for Millimeter-Wave Imaging