Precession and Structural Parameter Estimation of the Cone-shaped Warhead Based on the Micro-Doppler

Zou Xiao-Hai; Ai Xiao-Feng; Li  Yong-Zhen; Zhao  Feng; Xiao  Shun-Ping

doi:10.3724/SP.J.1146.2011.00120

Volume 33 Issue 10

Nov. 2011

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Zou Xiao-Hai, Ai Xiao-Feng, Li Yong-Zhen, Zhao Feng, Xiao Shun-Ping. Precession and Structural Parameter Estimation of the Cone-shaped Warhead Based on the Micro-Doppler[J]. Journal of Electronics & Information Technology, 2011, 33(10): 2413-2419. doi: 10.3724/SP.J.1146.2011.00120

Citation:

Zou Xiao-Hai, Ai Xiao-Feng, Li Yong-Zhen, Zhao Feng, Xiao Shun-Ping. Precession and Structural Parameter Estimation of the Cone-shaped Warhead Based on the Micro-Doppler[J]. Journal of Electronics & Information Technology, 2011, 33(10): 2413-2419. doi: 10.3724/SP.J.1146.2011.00120

Citation:

Zou Xiao-Hai, Ai Xiao-Feng, Li Yong-Zhen, Zhao Feng, Xiao Shun-Ping. Precession and Structural Parameter Estimation of the Cone-shaped Warhead Based on the Micro-Doppler[J]. Journal of Electronics & Information Technology, 2011, 33(10): 2413-2419. doi: 10.3724/SP.J.1146.2011.00120

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Precession and Structural Parameter Estimation of the Cone-shaped Warhead Based on the Micro-Doppler

doi: 10.3724/SP.J.1146.2011.00120

Zou Xiao-Hai^{* 艾小锋李永祯赵锋肖顺平
,},
Ai Xiao-Feng,
Li Yong-Zhen,
Zhao Feng,
Xiao Shun-Ping

Received Date: 2011-02-17
Rev Recd Date: 2011-06-10
Publish Date: 2011-10-19

Abstract

Abstract

Micro-motion feature is one of the effective features used for radar target recognition in the middle section of the ballistic curve. The micro-Doppler expressions of the scattering center at the conical point and two sliding scattering centers in the conical bottom are derived, firstly. The micro-Doppler of the scattering center at the conical point calculated by its micro-Doppler expression is little different to that which is getting by the Geometrical Theory of Diffraction (GTD). The other two scattering centers micro-Doppler achieved by the two methods coincide with each other. Three correlations of the micro-Doppler of the three scattering centers are founded by analyzing their micro-Doppler expressions. Then a method of precession and structural parameter estimation is proposed by using the magnitudes of the micro-Doppler at some times，which can obtain from the time-frequency analysis. Using the method to extract six precession and structural parameters in different angles of incidence is analyzed, and the simulated results validate the effectiveness of the proposed method.
- Radar target recognition,
- Geometrical Theory of Diffraction (GTD),
- Sliding scattering center,
- Micro- Doppler,
- Parameter estimation

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References

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