Intelligent Wi-Fi imaging method and system based on field programmable meta-material

An imaging method and imaging system technology, applied to radio wave measurement systems, radio wave reflection/re-radiation, instruments, etc., can solve difficult and complex calculation problems

Active Publication Date: 2020-01-31
PEKING UNIV
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Problems solved by technology

[0004] In addition, due to the continuous promotion of smart home and smart city construction, people are eager to extract target information in more complex scenes. Therefore, multi-target real-time imaging technology in complex environments has gradually become a focus of attention and research. However, due to the difficulty , computational complexity and other reasons, multi-target real-time imaging in complex environments has been facing difficult technical problems

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  • Intelligent Wi-Fi imaging method and system based on field programmable meta-material

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[0060] Below in conjunction with accompanying drawing, further describe the present invention through embodiment, but do not limit the scope of the present invention in any way.

[0061] The invention provides an intelligent Wi-Fi imaging system and method based on deep learning and field programmable metamaterials. like figure 1As shown, the intelligent Wi-Fi imaging system based on field-programmable metamaterials of the present invention specifically includes: Wi-Fi router 2, a reference receiver 3, a main receiver 5 and an electronic control system whose working frequency band covers the Wi-Fi frequency band Field Programmable Metamaterials1. Among them, the Wi-Fi router is an ordinary commercial wireless router, the main receiver receives the Wi-Fi signal scattered by the target 4, and the reference receiver is used to capture the Wi-Fi direct wave signal. Field-programmable metamaterials are planar reflective two-dimensional periodic structures composed of many indepen...

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Abstract

The invention discloses an intelligent Wi-Fi imaging method and system based on a field programmable meta-material. An intelligent Wi-Fi imaging system based on a field programmable meta-material is built by adopting a Wi-Fi router, a reference receiver, a main receiver and an electric control field programmable meta-material with a working frequency band covering a Wi-Fi frequency band. The method comprises the steps that: a Wi-Fi signal is directly used for detecting a target, electromagnetic waves do not need to be actively emitted to the target, and a deep learning method is used for achieving long-distance and non-line-of-sight real-time imaging on the target. The intelligent Wi-Fi imaging method and system can achieve long-distance and non-line-of-sight real-time imaging, and have the characteristics of low cost, high efficiency and the like.

Description

technical field [0001] The invention belongs to the cross technical fields of artificial intelligence, artificial electromagnetic materials and electromagnetic imaging, and relates to microwave electromagnetic imaging technology, in particular to an intelligent Wi-Fi imaging method and system based on deep learning and field programmable metamaterials. Background technique [0002] With the rapid development of modern information technology, microwave has been widely used in the perception and monitoring of the surrounding unknown environment due to its characteristics of wireless propagation and strong penetration, and can realize long-distance and non-line-of-sight target detection and recognition. It has greatly extended the sensory functions of human beings themselves. Among them, microwave electromagnetic imaging is a detection technology that uses microwaves to obtain target geometric parameters and electrical parameters. Currently, it has extremely important applicati...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01S13/89G01S7/41
CPCG01S7/411G01S7/414G01S7/417G01S7/418G01S13/89
Inventor 双雅李昊洋魏梦麟赵晗汀阮恒心李廉林
Owner PEKING UNIV
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