Numerical evaluation of dyadic diffraction coefficients and bistatic radar cross sections for a perfectly conducting semi-infinite elliptic cone

1998 ◽  
Vol 46 (3) ◽  
pp. 414-424 ◽  
Author(s):  
S. Blume ◽  
V. Krebs
Keyword(s):  
Cross Sections ◽  
Numerical Evaluation ◽  
Bistatic Radar ◽  
Radar Cross Sections ◽  
Elliptic Cone ◽  
Diffraction Coefficients

scholarly journals Application of GO Management in Bistatic RCS Computation Using the Vector Parabolic Equation Method

2013 ◽  
Vol 2013 ◽  
pp. 1-4
Author(s):  
X. J. Zhong ◽  
T. J. Cui ◽  
J. F. Zhang ◽  
W. M. Yu
Keyword(s):  
Parabolic Equation ◽  
Cross Sections ◽  
Large Scale ◽  
Three Dimensional ◽  
Original Method ◽  
Good Choice ◽  
Bistatic Radar ◽  
Large Scale Problems ◽  
Radar Cross Sections ◽  
Resultant Matrix

The parabolic equation (PE) method is a good choice in solving large-scale problems, but the resultant matrix is usually ill conditioned. In this letter, we introduce the geometric optics (GO) management in the calculation of bistatic radar cross sections using three-dimensional vector PE method. This method manages the object surface by GO, and hence the ill-conditioned problem can be avoided. Examples are given using the presented method, original method, and the method of moments. Results show the validity and stability of the presented method.

scholarly journals Bistatic Radar Cross Sections of Surfaces of Revolution

1955 ◽  
Vol 26 (3) ◽  
pp. 297-305 ◽  
Author(s):  
K. M. Siegel ◽  
H. A. Alperin ◽  
R. R. Bonkowski ◽  
J. W. Crispin ◽  
A. L. Maffett ◽  
...  
Keyword(s):  
Cross Sections ◽  
Bistatic Radar ◽  
Surfaces Of Revolution ◽  
Radar Cross Sections

scholarly journals Analysis of RCS of Low Observable Aircraft in VHF Band

2018 ◽  
Vol 2018 ◽  
pp. 1-10 ◽  
Author(s):  
Yi-Ru Jeong ◽  
Chan-Sun Park ◽  
Young-Kwan Ko ◽  
Jong-Gwan Yook
Keyword(s):  
Method Of Moments ◽  
Cross Sections ◽  
Incident Wave ◽  
Specular Reflection ◽  
Three Dimensional ◽  
Bistatic Radar ◽  
Three Dimensional Model ◽  
Maximum Value ◽  
Radar Cross Sections ◽  
Fast Multipole Algorithm

Electromagnetic signatures of a low observable aircraft have been studied in VHF band. First of all, a three-dimensional model of the aircraft has been established for numerical computation. Then, monostatic and bistatic radar cross sections (RCS) have been calculated. The model of the aircraft is made by a curved surface, and commercial as well as in-house three-dimensional electromagnetic code which is based on the method of moments (MoM) is utilized to calculate the RCS. A characteristic basis function method (CBFM) and a multilevel fast multipole algorithm (MLFMA) have been applied to analyze electrically large objects. The change of the monostatic RCS is very large depending on the direction of the incident wave. The maximum value is about 42 dBsm at the top and bottom of the aircraft, and the minimum value is about −10 dBsm at the front and back of the aircraft. It is found that the bistatic RCS also changes dramatically depending on the direction of the incident wave. The direction of maximum RCS occurs around specular reflection, and the value of maximum RCS ranges from 27 dBsm to 43 dBsm. On the other hand, the direction of the minimum RCS occurs irregularly, and the value is in the level of −30 dBsm.

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