Share Email Print
cover

Proceedings Paper

Analysis for scattering of plasma sheath of aircraft by ZT-FDTD method in three-dimensional space
Author(s): Yongchang Yang; Zhiyong Wei; Meihua Fang; Guoyun Chen; Zixia Zhang
Format Member Price Non-Member Price
PDF $14.40 $18.00

Paper Abstract

When space vehicles reentry atmosphere at hypersonic speed, a plasma sheath enveloping the spacecraft forms. The plasma sheath is a medium which is frequency dependent and lossy, so reflection and attenuation will happen when radio signals transport through the plasma sheath. In this paper, Finite Difference Time Domain using Z-transform method(ZT-FDTD) is used to analyze the problem. At first, Maxwell equations are transformed to make the expression independent of the medium properties, thus, the same equations can be used in different frequency dependent mediums, this technology achieves the feature of code portability. Then the ZT-FDTD method is extended to the three-dimensional space, by comparing the sectional drawing of the result in 3D with that in 1D to make sure of the correctness of the simulation in 3D, and then the method is used to study the scattering characteristics of objects in different situations in 3D. Finally we compare and give the analysis of different situations.

Paper Details

Date Published: 2 April 2010
PDF: 9 pages
Proc. SPIE 7651, International Conference on Space Information Technology 2009, 76513A (2 April 2010); doi: 10.1117/12.855174
Show Author Affiliations
Yongchang Yang, Nanjing Univ. of Aeronautics and Astronautics (China)
Zhiyong Wei, Nanjing Univ. of Aeronautics and Astronautics (China)
Meihua Fang, Nanjing Univ. of Aeronautics and Astronautics (China)
Guoyun Chen, Nanjing Univ. of Aeronautics and Astronautics (China)
Zixia Zhang, Nanjing Univ. of Aeronautics and Astronautics (China)


Published in SPIE Proceedings Vol. 7651:
International Conference on Space Information Technology 2009
Xingrui Ma; Baohua Yang; Ming Li, Editor(s)

© SPIE. Terms of Use
Back to Top