Browse > Article
http://dx.doi.org/10.5139/JKSAS.2014.42.11.958

A Hybrid RCS Analysis Code Based on Physical Optics and Geometrical Optics  

Jang, Min-Uk (Department of Aerospace and System Engineering and Research Center for Aircraft Parts Technology, Gyeongsang National University)
Myong, Rho-Shin (Department of Aerospace and System Engineering and Research Center for Aircraft Parts Technology, Gyeongsang National University)
Jang, In-Mo (Korea Aerospace Industries, Ltd.)
Lee, Dong-Ho (Korea Aerospace Industries, Ltd.)
Publication Information
Journal of the Korean Society for Aeronautical & Space Sciences / v.42, no.11, 2014 , pp. 958-967 More about this Journal
Abstract
A hybrid method based on high-frequency asymptotic optics was developed in order to predict the RCS of flying vehicles for RCS reduction studies. In cavity return, the rays are assumed to bounce from the inlet cavity based on the laws of geometrical optics and to exit the cavity via the aperture. In other parts of a flying vehicle, the physical optics method is applied to compute the back-scattered field from the solid surface. The hybrid method was validated by considering simple models of sphere and sphere with cavity. In addition, RCS analysis of a flying vehicle was conducted using the new hybrid electromagnetic scattering method based on physical optics and geometrical optics theories.
Keywords
Radar Cross Section; Physical Optics; Geometrical Optics;
Citations & Related Records
Times Cited By KSCI : 2  (Citation Analysis)
연도 인용수 순위
1 Chatzigeorgiadis, F., "Development of Code for a Physical Optics Radar Cross Section Prediction and Analysis Application," M. S. Thesis, Naval Postgraduate School, 2004.
2 Garrido, E. E., "Graphical User Interface for a Physical Optics Radar Cross Section Prediction Code," M. S. Thesis, Naval Postgraduate School, 2000.
3 RadBase User's Guide Version 2.0, 2000.
4 Ball, R. E., The Fundamentals of Aircraft Combat Survivability Analysis and Design, AIAA Education Series, 2nd Edition, 2003.
5 Knott, E. F., Shaeffer, J. F. and Tuley, M. T., Radar Cross Section, Second Edition, Artech House, 1993.
6 Choi, N. S., "An Analysis of Helicopter Radar Cross Section Using Physical Optics Method," M. S. Thesis, Gyeongsang National University, 2008.
7 Myong, R. S., Aircraft Survivability and Stealth Technology, Lecture Note, Gyeongsang National University, 2013.
8 Jenn, D. C., Radar and Laser Cross Section Engineering, AIAA Education Series, 2005.
9 Choi, S. W. and Boo, S. Y., "Computation of Radar Cross Section of Ship's Structure using a Physical Optics Method," Journal of the Society of Naval Architects of Korea, Vol. 37, No. 4, 2006, pp. 82-916.
10 Lee, D. H., "A Study on the CEM Code for RCS Prediction of Flying Vehicle Based on FVTD Method," M. S. Thesis, Gyeongsang National University, 2009.
11 Myong, R. S. and Cho, T. H., "Development of a Computational Electromagnetics Code for Radar Cross Section Calculations of Flying Vehicles," Journal of Korean Society for Aeronautical and Space Sciences, Vol. 33, No. 4, 2005, pp. 1-6.   과학기술학회마을   DOI
12 Ozgun, S., "Computation of Radar Cross Sections of Complex Targets by Shooting Bouncing Ray Method," M. S. Thesis, Middle East Technical University, 2009.
13 Ling, H., Chou, R. and Lee, S. W., "Shooting and Bouncing Rays: Calculating the RCS of an Arbitrarily Shaped Cavity," IEEE Transactions on Antennas and Propagation, Vol. 37, No. 2, 1989, pp. 194-205.   DOI
14 Ling, H., Chou, R. and Lee, S. W., "High-Frequency RCS of Open Cavities with Rectangular and Circular Cross Sections," IEEE Transactions on Antennas and Propagation, Vol. 37, No. 5. 1989, pp. 648-655.   DOI
15 Mahafza, B. R. and Elsherbeni, A. Z., MATLAB Simulations for Radar Systems Design, Chapman & Hall/CRC, 2004.