Extracting Method of Projectile Spin Speed based on Hilbert-Huang Transform

DOI

10.2991/jimet-15.2015.201How to use a DOI?

Keywords

micro Doppler effect; CW radar; HHT; spin speed; FFT.

Abstract

Making use of micro Doppler Effect measured by continuous wave radar (CW radar), the micro Doppler modulation mathematical model of radar echo cased by projectile rotation is established, and the analytic relationship between projectile rotation and micro motion is deduced. Based on Hilbert-Huang Transform (HHT), a new method of extracting spin speed is proposed to instead the traditional FFT method. Through the simulation, the new method is verified to be effective. This method is applied to extracting spin speed form the measured data, and its result is compared to the result calculated by FFT method. The result shows that the new method could effectively extract spin speed, and accurately describe the change of spin speed along with time.

Copyright

© 2015, the Authors. Published by Atlantis Press.

Open Access

This is an open access article distributed under the CC BY-NC license (http://creativecommons.org/licenses/by-nc/4.0/).

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TY  - CONF
AU  - Duan Peng-wei
AU  - Liu Zhi-xue
AU  - Gong Zhi-hua
AU  - Leng Xue-bing
AU  - Dong Li-tao
PY  - 2015/12
DA  - 2015/12
TI  - Extracting Method of Projectile Spin Speed based on Hilbert-Huang Transform
BT  - Proceedings of the 2015 Joint International Mechanical, Electronic and Information Technology Conference
PB  - Atlantis Press
SP  - 1071
EP  - 1075
SN  - 2352-538X
UR  - https://doi.org/10.2991/jimet-15.2015.201
DO  - 10.2991/jimet-15.2015.201
ID  - Peng-wei2015/12
ER  -