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Article Navigation> JOURNAL OF BEIJING INSTITUTE OF TECHNOLOGY> 2017> 26(1): 106-114
Yuan Jiang, Huayu Fan, Quanhua Liu, Xinliang Chen. High-Precision Wideband Phase-Derived Velocity Measurement for Micro-Motion Extraction[J]. JOURNAL OF BEIJING INSTITUTE OF TECHNOLOGY, 2017, 26(1): 106-114. doi: 10.15918/j.jbit1004-0579.201726.0116
Citation: Yuan Jiang, Huayu Fan, Quanhua Liu, Xinliang Chen. High-Precision Wideband Phase-Derived Velocity Measurement for Micro-Motion Extraction[J].JOURNAL OF BEIJING INSTITUTE OF TECHNOLOGY, 2017, 26(1): 106-114.doi:10.15918/j.jbit1004-0579.201726.0116
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High-Precision Wideband Phase-Derived Velocity Measurement for Micro-Motion Extraction

doi:10.15918/j.jbit1004-0579.201726.0116

  • School of Information and Electronics, Beijing Institute of Technology, Beijing, 100081, China

  • Received Date:2015-01-12
    Abstract
  • A phase-derived velocity measurement method is proposed in a wideband coherent system, based on a precise echo model considering the inner pulse Doppler effect caused by fast moving targets. The Cramer-Rao low band of velocity measurement precision is deduced, demonstrating the high precision of the proposed method. Simulations and out-field experiments further validate the effectiveness of the proposed method in high-precision measurement and micro-motion extraction for targets with weak reflection intensity. Compared with the long-time integration approaches for velocity measurement, the phase-derived method is easy to implement and meets the requirement for high data rate, which makes it suitable for micro-motion feature extraction in wideband systems.
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    • References (15)
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