Clutter-Resistant Vital Sign Detection Using Amplitude-Based Demodulation by EEMD-PCA-Correlation Algorithm for FMCW Radar Systems

Ching Yao Huang, Guan Wei Fang, Huey Ru Chuang, Chin Lung Yang

研究成果: Conference contribution

摘要

FMCW radar systems enable remote vital sign and range detection but suffer from proximity clutter issues. When a large clutter exists around the target of interest, capture effect occurs and the reflected waveform from clutter would dominate the phase of the baseband signal, destroying the vital sign detection. This paper presents a novel and clutter-resistant demodulation to extract slow-time signal under strong reflected interference signals of a stationary or non-stationary clutter at close range. By applying amplitude-based demodulation, signals of the stationary clutter can be distinguished and excluded. Therefore, vital sign can be clearly determined even under the condition of strong close reflected interferences. Furthermore, extracting heartbeat clearly from FMCW under interference of clutter is relatively difficult using traditional complex signal demodulation algorithms. This paper proposes a novel EEMD-PCA-Correlation algorithm to solve this problem. From the experiment results, the average error of heartbeat with a clutter within 1 cm is 0.537%.

原文English
主出版物標題EuRAD 2019 - 2019 16th European Radar Conference
發行者Institute of Electrical and Electronics Engineers Inc.
頁面293-296
頁數4
ISBN(電子)9782874870576
出版狀態Published - 2019 十月
事件16th European Radar Conference, EuRAD 2019 - Paris, France
持續時間: 2019 十月 22019 十月 4

出版系列

名字EuRAD 2019 - 2019 16th European Radar Conference

Conference

Conference16th European Radar Conference, EuRAD 2019
國家France
城市Paris
期間19-10-0219-10-04

All Science Journal Classification (ASJC) codes

  • Signal Processing
  • Instrumentation

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  • 引用此

    Huang, C. Y., Fang, G. W., Chuang, H. R., & Yang, C. L. (2019). Clutter-Resistant Vital Sign Detection Using Amplitude-Based Demodulation by EEMD-PCA-Correlation Algorithm for FMCW Radar Systems. 於 EuRAD 2019 - 2019 16th European Radar Conference (頁 293-296). [8904708] (EuRAD 2019 - 2019 16th European Radar Conference). Institute of Electrical and Electronics Engineers Inc..