Dr. Qiang An Profile

Dr. Qiang An

at PLA Air Force Military Medical Univ.

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Proceedings Article | 24 October 2016 Paper

A novel approach to simulate chest wall micro-motion for bio-radar life detection purpose

Qiang An, Zhao Li, Fulai Liang, Fuming Chen, Jianqi Wang

Proceedings Volume 9997, 99970T (2016) https://doi.org/10.1117/12.2243127

KEYWORDS: Target detection, Chest, Scattering, Radar, Heart, Electromagnetic scattering, Electromagnetism, Numerical simulations, Servomechanisms, Tissues

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Volunteers are often recruited to serve as the detection targets during the research process of bio-radar life detection technology, in which the experiment results are highly susceptible to the physical status of different individuals (shape, posture, etc.). In order to objectively evaluate the radar system performance and life detection algorithms, a standard detection target is urgently needed. The paper first proposed a parameter quantitatively controllable system to simulate the chest wall micro-motion caused mainly by breathing and heart beating. Then, the paper continued to analyze the material and size selection of the scattering body mounted on the simulation system from the perspective of back scattering energy. The computational electromagnetic method was employed to determine the exact scattering body. Finally, on-site experiments were carried out to verify the reliability of the simulation platform utilizing an IR UWB bioradar. Experimental result shows that the proposed system can simulate a real human target from three aspects: respiration frequency, amplitude and body surface scattering energy. Thus, it can be utilized as a substitute for a human target in radar based non-contact life detection research in various scenarios.

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