Modelling of Electromagnetic Scattering by a Hypersonic Cone-Like Body in Near Space
Joint Authors
Qian, Ji-Wei
Zhang, Hai-Li
Xia, Ming-Yao
Source
International Journal of Antennas and Propagation
Issue
Vol. 2017, Issue 2017 (31 Dec. 2017), pp.1-11, 11 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2017-02-07
Country of Publication
Egypt
No. of Pages
11
Main Subjects
Abstract EN
A numerical procedure for analysis of electromagnetic scattering by a hypersonic cone-like body flying in the near space is presented.
First, the fluid dynamics equation is numerically solved to obtain the electron density, colliding frequency, and the air temperature around the body.
They are used to calculate the complex relative dielectric constants of the plasma sheath.
Then the volume-surface integral equation method is adopted to analyze the scattering properties of the body plus the plasma sheath.
The Backscattering Radar Cross-Sections (BRCS) for the body flying at different speeds, attack angles, and elevations are examined.
Numerical results show that the BRCS at a frequency higher than 300 MHz is only slightly affected if the speed is smaller than 7 Mach.
The BRCS at 1 GHz would be significantly reduced if the speed is greater than 7 Mach and is continuously increased, which can be attributed to the absorption by the lossy plasma sheath.
Typically, the BRCS is influenced by 5~10 dBm for a change of attack angle within 0~15 degrees, or for a change of elevation within 30~70 km above the ground.
American Psychological Association (APA)
Qian, Ji-Wei& Zhang, Hai-Li& Xia, Ming-Yao. 2017. Modelling of Electromagnetic Scattering by a Hypersonic Cone-Like Body in Near Space. International Journal of Antennas and Propagation،Vol. 2017, no. 2017, pp.1-11.
https://search.emarefa.net/detail/BIM-1158513
Modern Language Association (MLA)
Qian, Ji-Wei…[et al.]. Modelling of Electromagnetic Scattering by a Hypersonic Cone-Like Body in Near Space. International Journal of Antennas and Propagation No. 2017 (2017), pp.1-11.
https://search.emarefa.net/detail/BIM-1158513
American Medical Association (AMA)
Qian, Ji-Wei& Zhang, Hai-Li& Xia, Ming-Yao. Modelling of Electromagnetic Scattering by a Hypersonic Cone-Like Body in Near Space. International Journal of Antennas and Propagation. 2017. Vol. 2017, no. 2017, pp.1-11.
https://search.emarefa.net/detail/BIM-1158513
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-1158513