A Doppler aliasing free micro-motion parameter estimation method in the terahertz band

被引：0
作者：
Qi Yang
Bin Deng
Hongqiang Wang
Yuliang Qin
机构：
[1] College of Electronic Science and Engineering,
[2] National University of Defense Technology,undefined
来源：
EURASIP Journal on Wireless Communications and Networking | / 2017卷
关键词：
Terahertz radar; Micro-Doppler; Generalized Hough Transform; Doppler aliasing; Parameter estimation;
D O I：
暂无
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摘要：
Micro-Doppler, induced by micro-motion of targets, is an important characteristic for target recognition once extracted via parameter estimation. However, micro-Doppler is usually too significant to result in aliasing in the terahertz band. According to this problem, a Doppler aliasing free micro-motion parameter estimation method based on the modulo Generalized Hough transform is proposed in this paper. Its basic idea is to search and match the parameters of aliasing micro-Doppler curves in the time-frequency distribution image. The high estimation precision and excellent noise immunity of this method are verified through simulations based on CST data and experiments based on a 0.33 THz radar system.
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  • [1] Hosako I(2007)At the dawn of a new era in terahertz technology Proc. IEEE 95 1611-1623
  • [2] Sekine N(2005)THz imaging and sensing for security applications—explosives, weapons and drugs Semicond. Sci. Technol. 20 266-280
  • [3] Patrashin M(2008)Terahertz spectroscopy of explosives and drugs Mater. Today 11 18-26
  • [4] Federici JF(2008)A high-resolution imaging radar at 580 GHz IEEE Microwave Wireless Compon. Lett. 18 64-66
  • [5] Schulkin B(1991)An experimental 225 GHz pulsed coherent radar IEEE Trans. Microwave Theory Tech. 39 555-562
  • [6] Huang F(2010)Micro-doppler signature feature analysis in terahertz band J. Infrared Millimeter Terahertz Waves 31 319-328
  • [7] Davies AG(2013)Research on micro-feature extraction algorithm of target based on terahertz radar EURASIP J. Wirel. Commun. Netw. 2013 1-9
  • [8] Burnett AD(undefined)undefined undefined undefined undefined-undefined
  • [9] Fan W(undefined)undefined undefined undefined undefined-undefined
  • [10] Cooper KB(undefined)undefined undefined undefined undefined-undefined
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