Doppler signatures of radar backscattering from objects with micro-motions

被引：125
|
作者：
Chen, V. C. [1 ]
机构：
[1] USN, Res Lab, Div Radar, Washington, DC 20375 USA
来源：
IET SIGNAL PROCESSING | 2008年 / 2卷 / 03期
关键词：
D O I：
10.1049/iet-spr:20070137
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：
Radar backscattering from objects with micro-motions is subject to Doppler modulations that help determine dynamic properties of objects and provide useful information about the objects. Doppler modulations represented by joint time-frequency analysis provide useful time-varying Doppler characteristics and, thus, add additional time-dimension information to exploit motion characteristics. The author discusses how to simulate radar backscattering from objects with rigid body motions and objects with non-rigid body motions, and how to analyse, interpret and characterise Doppler signatures of objects that undergo these micro-motions. Precession heavy top and human locomotion are used as examples of rigid and non-rigid body motions, respectively. Radar micro-Doppler signatures derived from these motions illustrate the potential of the joint time-frequency analysis for exploiting kinetic and dynamic properties of objects.
引用
收藏
页码：291 / 300
页数：10
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