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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学科分类号：
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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