Object Illusion in Complex Electromagnetic Wave Environments (OBLICUE)
Object Illusion in Complex Electromagnetic Wave Environments (OBLICUE)
批准号:
EP/V048937/1
负责人:
Sendy Phang
金额:
$25.78万
依托单位:
依托单位国家:
英国
项目类别:
Research Grant
财政年份:
2021
资助国家:
英国
项目状态:
已结题
起止时间:
2021 至 --
中文摘要
检测任意物体的存在和形状的能力在成像技术以及未来一代无线网络的定位中至关重要。这种能力目前依赖于复杂的数字信号处理算法,这些算法处理并以某种方式反转从目标反向散射的信号。虽然迄今为止,大多数研究工作都集中在提高这些算法的准确性和效率上,但仍然存在一个关键问题,即我们是否能够从成像/定位技术中隐藏对象。从本质上讲,在电磁兼容性方面,我们迫切需要保护电子设备免受外部攻击,并在无线通信环境中保护数据嗅探。有人可能会认为,在光学和电磁学方面进行广泛的研究以实现物体的隐形是隐藏物体的前进方向。然而,这种技术从来没有达到完美的隐藏对象,只设计用于在自由空间中操作。我们在这里提出的变革性想法避免了使用斗篷,而是站在用异常镜子装扮环境边界的一部分。这些反射镜的系统通过塑造电磁波阵面来产生物体位移的错觉。定义反射镜配置的反射掩模将使用量子和统计力学领域开发的先进数学方法进行设计。
英文摘要
The ability to detect the presence and shape of arbitrary objects is of paramount importance in imaging technologies as well as in localisation for the future generation of wireless networks. This capability currently stands on sophisticated digital signal processing algorithms that process and somehow invert the signal backscattered from a target. While most of the research effort has to date focused on improving accuracy and efficiency of these algorithms, a key question that remains is whether we are able to hide an object from imaging/localisation technologies.Inherently, there is a strong need to protect electronic devices from external attacks in the context of electromagnetic compatibility, and data sniffing in the context of wireless communications. One might think that the extensive research in optics and electromagnetics to achieve cloaking of objects is the way forward to hide objects. However, this technology never achieves a perfect concealing of the object and is only designed to operate in free-space. The transformative idea that we put forward here avoids using a cloak and stands on dressing part of the environment boundary with anomalous mirrors. A system of those mirrors create the illusion of object displacement by shaping the electromagnetic wavefront. The reflection mask defining the mirror configurations will be engineered using advanced mathematical methods developed in the fields of quantum and statistical mechanics.
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Photonic reservoir computing enabled by stimulated Brillouin scattering
通过受激布里渊散射实现光子储层计算
DOI:
10.48550/arxiv.2302.07698
发表时间:
2023
期刊:
影响因子:
--
作者:
[Phang S]
通讯作者:
Phang S
DOI:
10.23919/at-ap-rasc54737.2022.9814300
发表时间:
2022-05
期刊:
2022 3rd URSI Atlantic and Asia Pacific Radio Science Meeting (AT-AP-RASC)
影响因子:
--
作者:
[Hamidreza Taghvaee;Mir Lodro;Neekar M Mohammed;S. Terranova;S. Phang;Martin Richter;G. Gradoni]
通讯作者:
Hamidreza Taghvaee;Mir Lodro;Neekar M Mohammed;S. Terranova;S. Phang;Martin Richter;G. Gradoni
Perfect-Lens Theory Enables Metasurface Reflectors for Subwavelength Focusing
完美透镜理论使超表面反射器能够实现亚波长聚焦
DOI:
10.1103/physrevapplied.19.014004
发表时间:
2023
期刊:
Physical Review Applied
影响因子:
4.6
作者:
[Taghvaee H]
通讯作者:
Taghvaee H
DOI:
10.48550/arxiv.2202.01763
发表时间:
2022
期刊:
影响因子:
--
作者:
[Anufriev G]
通讯作者:
Anufriev G
DOI:
10.23919/at-ap-rasc54737.2022.9814368
发表时间:
2022
期刊:
影响因子:
--
作者:
[Mohammed N]
通讯作者:
Mohammed N
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