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A hybrid chaos-Doppler radar for through-wall life detection

Author

Listed:
  • Ying Li
  • Hang Xu
  • Jianguo Zhang
  • Li Liu

Abstract

We experimentally demonstrate a hybrid radar system that incorporates a wideband Boolean-chaos mode and a phase-based Doppler mode for human localization and life signal (respiration and heartbeat) monitoring. The measurement principle and signal-processing technology allow this radar to work simultaneously at two different modes for different purposes. The wideband Boolean-chaos mode is responsible for accurate range detection while the phase-based Doppler mode is utilized for life signal monitoring. Experimental results show that the proposed hybrid radar can realize the simultaneous detection for range and life signal with high-range resolution, high sensitivity, and large dynamic range. The down-range resolution and dynamic range for range detection behind a 20-cm-thick wall are 15 cm and 50 dB, respectively. Meanwhile, the dynamic ranges for heartbeat and respiration detection are 10 and 50 dB, respectively.

Suggested Citation

  • Ying Li & Hang Xu & Jianguo Zhang & Li Liu, 2018. "A hybrid chaos-Doppler radar for through-wall life detection," Journal of Electromagnetic Waves and Applications, Taylor & Francis Journals, vol. 32(13), pages 1654-1663, September.
    • Handle: RePEc:taf:tewaxx:v:32:y:2018:i:13:p:1654-1663
    DOI: 10.1080/09205071.2018.1464964
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