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显着扩大。由于毫米波天线和电子器件尺寸小，加上毫米波能够穿过雾、烟雾、衣服和一些建筑材料传播，毫米波传感器正在成为安全传感、医疗等领域极其重要的工具。成像、自动驾驶车辆传感和科学研究。毫米波成像还能够在目前未充分利用的电磁范围内进行成像和感测，因此在上述领域中变得越来越重要。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特别受到人们的关注。该项目将开发一种称为主动非相干成像的毫米波阵列成像新方法。所提出的非相干成像方法有可能在不牺牲图像分辨率的情况下显着降低毫米波和亚毫米波成像的成本。此外，即使部分接收器阵列元件发生故障，所提出的方法的图像质量也不会显着下降，这比基于像素的成像方法提高了其长期实用性。该项目的成果将使毫米波成像仪变得更容易为社会所使用，并在广泛的应用中轻松实现。此外，这项研究的结果将用于增强密歇根州立大学雷达和毫米波技术的现有课程并开发新课程。结合稀疏阵列理论和空间频率采样，所提出的主动非相干毫米波成像利用时空非相干发射机阵列与稀疏相干接收机阵列相结合。虽然分辨率是许多应用中毫米波成像的主要限制因素，但可以利用使用空间频率采样的稀疏接收器阵列来生成图像，其分辨率相当于具有至少少一个数量级的元件的完全填充阵列。非相干成像还具有提高效率的额外好处，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加节能。该项目还将研究一种新颖的模块化封装格式，其中各个收发器芯片被无线锁相，并且接收到的数据被无线下行。这种分布式方法使新的成像方法能够直接扩展并在未来的毫米波成像系统中轻松实现。

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.

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