正弦调制的布尔混沌生命探测雷达  

Boolean-Chaos Life-Detection Radar with Sinusoidal Modulation

作　　者：李莹[1,2] 徐航 张建国[1,2] LI Ying;XU Hang;ZHANG Jianguo(Key Laboratory of Advanced Transducers and Intelligent Control System of Ministry of Education and Shanxi Province,Taiyuan University of Technology,Taiyuan 030024,China;College of Physics and Optoelectronics,Taiyuan University of Technology,Taiyuan 030024,China)

机构地区：[1]太原理工大学新型传感器与智能控制教育部和山西省重点实验室,太原030024 [2]太原理工大学物理与光电工程学院,太原030024

出　　处：《电子器件》2018年第5期1257-1263,共7页Chinese Journal of Electron Devices

基　　金：国家自然科学基金(61601319;51404165);山西省自然科学基金(201601D202043;201701D221114);山西省高等学校科技创新项目(2017136)

摘　　要：提出了一种正弦调制的布尔混沌雷达,该雷达采用正弦波调制的宽带布尔混沌信号作为发射信号,基于混沌相关技术和迈克尔逊干涉原理,可同时实现墙后人体定位和生命信号探测。实验结果表明,穿透20 cm厚的砖墙,人体定位的距离向分辨率和动态范围分别为15 cm和50 d B,呼吸、心跳测量的动态范围分别为50 d B和10 d B。此外,电磁仿真研究了该雷达二维空间定位的抗干扰性能,结果表明其对噪声、线性调频信号和布尔混沌信号具有良好的抗干扰性。The proposed Boolean-chaos radar with sinusoidal modulation transmits a wideband Boolean-chaos signal modulated by a sinusoidal wave.Human location and vital sign detection can be realized simultaneously using the chaotic correlation method and Michelson interference principle.Experimental results demonstrate that this radar can detect the human target through 20-cm-thick wall.The down-range resolution and dynamic range for human location are 15 cm and 50 dB,respectively.Besides,the dynamic ranges for breathing and heartbeat measurements are 50 dB and 10 dB,respectively.Furthermore,the anti-jamming properties of this radar for human location in the two dimensional space are demonstrated by electromagnetic simulations.The results show that the proposed radar possesses excellent jamming immunity to the noise,linear frequency modulation signal and Boolean-chaos signal.

关 键 词：雷达 生命探测 混沌相关技术 迈克尔逊干涉原理 时域有限差分法 

分 类 号：TN95[电子电信—信号与信息处理]