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Proceedings Paper

Modeling and simulation of micro-motion in the complex warhead target
Author(s): Chao Ning; Zhihe Xiao; Chao Wang; Hongcheng Yin
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Paper Abstract

The micro-motion dynamics induce the micro-Doppler effect. The rotating motion of radar targets is introduced, the formulas of micro-Doppler for point-scatter model targets are derived, and some simulations for a warhead with a sphere-head cone is given in the paper. After geometrical modeling and meshing, the static RCS of the sphere-cone is calculated with PO+PTD. On the basis of the stationary modeling, a new method of quasi-dynamic electromagnetic modeling is provided. The time domain returned signal of coning warhead could be simulated in this method, after processing by time-frequency transform, the period of coning can be obtained. The simulation results are in agreement with the theoretical result. The method by geometrical model is more accurate than point-scatters model.

Paper Details

Date Published: 10 November 2007
PDF: 7 pages
Proc. SPIE 6795, Second International Conference on Space Information Technology, 67955I (10 November 2007); doi: 10.1117/12.775344
Show Author Affiliations
Chao Ning, National Electromagnetic Scattering Lab. (China)
Zhihe Xiao, National Electromagnetic Scattering Lab. (China)
Chao Wang, National Electromagnetic Scattering Lab. (China)
Hongcheng Yin, National Electromagnetic Scattering Lab. (China)

Published in SPIE Proceedings Vol. 6795:
Second International Conference on Space Information Technology

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