Abstract
Millimeter-wave (mmWave) has advantages of sensitivity and concealment, which enables a mature application in human body security. However, all the state-of-the-art solutions are based on a huge antenna array which is too cumbersome, i.e., it is difficult to move, repair, and also occupies a large amount of space. From views of the long term, it is uneconomical, high power consumption and narrow application. In this paper, we propose a new and more efficient detection system. We utilize a small radar chip with a custom-designed method to extract the spatial features of the detected objects, e.g., location and energy intensity. The method establishes the image of the energy intensity changing with time and analyzes the change of reflected energy of different materials on different people to find the relationship between them. From the relationship, we can infer whether there are metal products and their positions quickly on the tested person. The proposed solution is implemented on a mmWave radar. We evaluate it thoroughly and provide more extensive experiments for its practicability.
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Acknowledgment
The research is supported by National Science and Technology Major Program of the Ministry of Science and Technology and project name is Research on 5G channel emulation and performance validation with 2018ZX03001031, NSFC (61772084, 61832010), the Fundamental Research Funds for the Central Universities (2019XD-A13).
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Lu, Y., Chen, W., Liu, H., Zhou, A. (2020). Study on Feasibility of Remote Metal Detection Using Millimeter Wave Radar for Convenient and Efficient Security Check. In: Yu, Z., Becker, C., Xing, G. (eds) Green, Pervasive, and Cloud Computing. GPC 2020. Lecture Notes in Computer Science(), vol 12398. Springer, Cham. https://doi.org/10.1007/978-3-030-64243-3_2
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