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Journal of Aerospace Technology and Management

versão impressa ISSN 1984-9648versão On-line ISSN 2175-9146

J. Aerosp. Technol. Manag. vol.3 no.1 São José dos Campos jan./abr. 2011

https://doi.org/10.5028/jatm.2011.03019310 

ORIGINAL PAPERS

Measurements in an Outdoor Facility and Numerical Simulation of the Radar Cross Section of Targets at 10 GHz

Guilherme G. Peixoto*  1 

Mauro Angelo Alves2 

Alberto José de Faro Orlando3 

Mirabel Cerqueira Rezende4 

1Instituto Tecnológico de Aeronáutica. São José dos Campos - Brazil. guilhermeggp@iae.cta.br

2Instituto de Aeronáutica e Espaço. São José dos Campos - Brazil. pacmauro@yahoo.com

3Instituto Tecnológico de Aeronáutica. São José dos Campos - Brazil. faro@ita.br

4Instituto de Aeronáutica e Espaço. São José dos Campos - Brazil. mirabelmcr@iae.cta.br


Abstract

This paper presents preliminary data from an ongoing study on the radar cross section (RCS) of targets with simple and complex surface geometries (a flat square plate, a 90° dihedral corner reflector and a retired air-to-air missile). Measurements and computer simulations of these metallic targets were carried out at 10 GHz and also when the surfaces of the targets were completely coated with a radar absorbing material (RAM), consisting of flexible sheets of carbonyl iron dispersed in a silicone rubber matrix. Experimental measurements were obtained in an outdoor facility, and computer simulations were performed using a commercial software package. The main objective of this study was to compare results in order to highlight some of the issues related to the determination of the RCS of an actual target. Additionally, a Brazilian research institute has demonstrated the capability to produce and characterize materials related to the main aspects of RCS research, namely, measurement, simulation, and production of RAM. This paper introduces the reader to the research being carried out in this area at the Materials Division in the Instituto de Aeronáutica e Espaço.

Keywords: Radar cross section; Computer simulations; Outdoor measurements; Radar absorbing materials

Full text is available only in PDF.

REFERENCES

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Alves, M.A., Peixoto, G.G. and Rezende, M.C., 2007b, "Orientation of a support pylon used in radar cross section measurements", Proceedings of the Microwave and Optoelectronics Conference, IMOC 2007. SBMO/IEEE MTT-S Internacional, pp. 406-408, Salvador, BA, Brazil. [ Links ]

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Received: October 26, 2010; Accepted: February 15, 2011

*author for correspondence

Creative Commons License This is an Open Access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.