Signal analysis by time-frequency distributions - Applications to impulse radar scattering echoes of plate and dihedral corner

被引：0

作者：

Han, MH ^{[1
]}

Yuan, NC ^{[1
]}

Hu, C ^{[1
]}

机构：

[1] Natl Univ Def Technol, Dept Elect, Changsha 410073, Hunan, Peoples R China

来源：

INTERNATIONAL JOURNAL OF INFRARED AND MILLIMETER WAVES | 1998年 / 19卷 / 07期

关键词：

scattering; time-frequency analysis; dihedral corner;

D O I：

10.1023/A:1022635710654

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

The scattering phenomenology of the plate and the dihedral corner are investigated using the time-frequency processing of simulated data. The FDTD method is applied to carry out the simulated data. The simulated data are next analyzed in joint time-frequency plane by using the STFT (short time Fourier transformation) technology to provide further insight into the scattering phenomenology. In addition, the time-frequency distribution series, which improves the resolution of the STFT while overcoming the cross-term interference problem of the Wigner-Ville distribution, is applied to better identify back scattering returns that are difficult to resolve in the joint time-frequency plane.

引用

页码：1017 / 1025

页数：9

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