Advancing electromagnetic inversion for characterization and design

推进电磁反演以进行表征和设计

基本信息

  • 批准号:
    RGPIN-2018-06042
  • 负责人:
  • 金额:
    $ 2.4万
  • 依托单位:
  • 依托单位国家:
    加拿大
  • 项目类别:
    Discovery Grants Program - Individual
  • 财政年份:
    2020
  • 资助国家:
    加拿大
  • 起止时间:
    2020-01-01 至 2021-12-31
  • 项目状态:
    已结题

项目摘要

This research program is concerned with Electromagnetic (EM) inversion, which is defined as the process by which some properties of a region of interest are inferred from its external EM signatures. This process involves solving EM inverse problems, which are often cast as optimization problems. The unique aspect of this research program is that all its algorithms and techniques stem from the consistent framework of EM inversion, and are then applied to impact diverging application areas: near-field microwave imaging, microwave sea ice remote sensing, antenna characterization, and design of EM engineered surfaces. In this research program, the external EM signatures to be used by inversion algorithms are either measured EM data (e.g., EM fields, radar cross section) or desired EM properties to be realized. On the other hand, the properties to be inferred are either (i) dielectric properties of objects or regions that scatter incident EM waves (e.g., biological tissues or sea ice), or (ii) equivalent currents of EM sources that generate EM waves (e.g., antennas). The EM inversion framework is often used for imaging, remote sensing, and non-destructive evaluation applications, which we collectively refer to as characterization applications. This research program not only advances the topic of EM inversion for characterization, but also investigates EM inversion for design applications. Within the area of EM inversion for characterization, our main focus is (I) to develop novel algorithms and techniques to enhance the achievable accuracy, spatial resolution, and detection capabilities, and (II) to develop more affordable inversion strategies by utilizing magnitude-only EM data. This will be pursued to advance three application areas: microwave biomedical imaging, microwave remote sensing of oil spills in sea ice, and phaseless antenna measurements. Within the area of EM inversion for design, the key challenge to be addressed is how to use the inversion framework to facilitate the macroscopic design of EM metasurfaces, which are engineered surfaces composed of subwavelength elements. These surfaces are important as they provide a systematic means to transform a given EM field to a desired one by imposing appropriate boundary conditions. This, therefore, will advance the application area of antenna engineering. The long-term objective of this research is to advance the topic of EM inverse problems so that (1) inversion results with maximum quantitative accuracy and spatial resolution can be systematically achieved for characterization applications and (2) EM inversion is established as an effective complementary framework to facilitate the design of complex EM systems. This research program will train highly qualified personnel (HQP) with hardware and software skills. These HQP can then use their expertise in EM inversion to impact various EM characterization and design applications.
该研究计划涉及电磁(EM)反演,其定义为从外部EM签名推断感兴趣区域的某些属性的过程。这个过程涉及求解EM逆问题,这通常被视为优化问题。该研究计划的独特之处在于,其所有算法和技术都源于EM反演的一致框架,然后应用于影响不同的应用领域:近场微波成像,微波海冰遥感,天线表征和EM工程表面的设计。 在该研究计划中,反演算法使用的外部EM特征是测量的EM数据(例如,电磁场、雷达截面)或期望的电磁特性。另一方面,要推断的属性是(i)散射入射EM波的对象或区域的介电属性(例如,生物组织或海冰),或(ii)产生EM波的EM源的等效电流(例如,天线)。 EM反演框架通常用于成像,遥感和非破坏性评估应用,我们统称为表征应用。本研究计划不仅推进了电磁反演表征的主题,而且还研究了电磁反演的设计应用。 在EM反演表征领域内,我们的主要重点是(I)开发新的算法和技术,以提高可实现的精度,空间分辨率和检测能力,以及(II)通过利用仅幅度EM数据开发更实惠的反演策略。这将推动三个应用领域的发展:微波生物医学成像、海冰石油溢漏微波遥感和无相位天线测量。 在EM反演设计领域,要解决的关键挑战是如何使用反演框架,以促进宏观设计的EM元表面,这是工程表面组成的亚波长元素。 这些表面是重要的,因为它们提供了通过施加适当的边界条件将给定的EM场转换为期望的EM场的系统手段。因此,这将推进天线工程的应用领域。 本研究的长期目标是推进EM逆问题的主题,以便(1)可以系统地实现表征应用的最大定量精度和空间分辨率的反演结果,以及(2)EM反演被建立为有效的补充框架,以促进复杂EM系统的设计。该研究计划将培养具有硬件和软件技能的高素质人员(HQP)。然后,这些HQP可以使用他们在EM反演方面的专业知识来影响各种EM表征和设计应用。

项目成果

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Mojabi, Puyan其他文献

On the Use of Absorbing Metasurfaces in Microwave Imaging
Comparison of an Enhanced Distorted Born Iterative Method and the Multiplicative-Regularized Contrast Source Inversion method
Microwave Biomedical Imaging Using the Multiplicative Regularized Gauss-Newton Inversion
Analysis of Incident Field Modeling and Incident/Scattered Field Calibration Techniques in Microwave Tomography
On the Use of Focused Incident Near-Field Beams in Microwave Imaging
  • DOI:
    10.3390/s18093127
  • 发表时间:
    2018-09-01
  • 期刊:
  • 影响因子:
    3.9
  • 作者:
    Bayat, Nozhan;Mojabi, Puyan
  • 通讯作者:
    Mojabi, Puyan

Mojabi, Puyan的其他文献

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{{ truncateString('Mojabi, Puyan', 18)}}的其他基金

Electromagnetic Inversion for Characterization and Design
用于表征和设计的电磁反演
  • 批准号:
    CRC-2017-00259
  • 财政年份:
    2022
  • 资助金额:
    $ 2.4万
  • 项目类别:
    Canada Research Chairs
Advancing electromagnetic inversion for characterization and design
推进电磁反演以进行表征和设计
  • 批准号:
    RGPIN-2018-06042
  • 财政年份:
    2022
  • 资助金额:
    $ 2.4万
  • 项目类别:
    Discovery Grants Program - Individual
Electromagnetic Inversion For Characterization And Design
用于表征和设计的电磁反演
  • 批准号:
    CRC-2017-00259
  • 财政年份:
    2021
  • 资助金额:
    $ 2.4万
  • 项目类别:
    Canada Research Chairs
Advancing electromagnetic inversion for characterization and design
推进电磁反演以进行表征和设计
  • 批准号:
    RGPIN-2018-06042
  • 财政年份:
    2021
  • 资助金额:
    $ 2.4万
  • 项目类别:
    Discovery Grants Program - Individual
Electromagnetic Inversion for Characterization and Design
用于表征和设计的电磁反演
  • 批准号:
    CRC-2017-00259
  • 财政年份:
    2020
  • 资助金额:
    $ 2.4万
  • 项目类别:
    Canada Research Chairs
Advancing electromagnetic inversion for characterization and design
推进电磁反演以进行表征和设计
  • 批准号:
    RGPIN-2018-06042
  • 财政年份:
    2019
  • 资助金额:
    $ 2.4万
  • 项目类别:
    Discovery Grants Program - Individual
Electromagnetic Inversion for Characterization and Design
用于表征和设计的电磁反演
  • 批准号:
    CRC-2017-00259
  • 财政年份:
    2019
  • 资助金额:
    $ 2.4万
  • 项目类别:
    Canada Research Chairs
Electromagnetic Inversion for Characterization and Design
用于表征和设计的电磁反演
  • 批准号:
    CRC-2017-00259
  • 财政年份:
    2018
  • 资助金额:
    $ 2.4万
  • 项目类别:
    Canada Research Chairs
Advancing electromagnetic inversion for characterization and design
推进电磁反演以进行表征和设计
  • 批准号:
    RGPIN-2018-06042
  • 财政年份:
    2018
  • 资助金额:
    $ 2.4万
  • 项目类别:
    Discovery Grants Program - Individual
Electromagnetic Inversion for Characterization and Design
用于表征和设计的电磁反演
  • 批准号:
    CRC-2017-00259
  • 财政年份:
    2017
  • 资助金额:
    $ 2.4万
  • 项目类别:
    Canada Research Chairs

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Electromagnetic Inversion for Characterization and Design
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  • 财政年份:
    2022
  • 资助金额:
    $ 2.4万
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Advancing electromagnetic inversion for characterization and design
推进电磁反演以进行表征和设计
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    RGPIN-2018-06042
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  • 资助金额:
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Advancing electromagnetic inversion for characterization and design
推进电磁反演以进行表征和设计
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    RGPIN-2018-06042
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  • 资助金额:
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