DocumentCode :
3196766
Title :
Interpolation to increase facet resolution for RCS
Author :
Christensen, M. ; Ni, S. ; Reeves, D.
Author_Institution :
Illinois Univ., Urbana, IL, USA
fYear :
1992
fDate :
18-25 June 1992
Firstpage :
961
Abstract :
Efforts in using a surface interpolation technique to improve flat triangular facet models are shown. The authors performed RCS (radar cross section) calculations on a triangular faceted sphere, created a new sphere using the interpolation technique, and re-performed the RCS calculations. The original model was created with a uniform radius, ensuring that the RCS was as accurate as possible before interpolation. Increasing the patch resolution on the surface of the sphere results in an improved RCS calculation. The authors then performed the same process for an ogive-shaped object, for which the theoretical value is also well-defined. It can also be seen here that, if there is an area on the original model that is slightly incorrect, smoothing the model using the interpolation technique can result in values farther from those of theory. In addition, the range profile of an aircraft wing is examined before and after interpolation. It is evident that although the surface of the object has not changed significantly, there is a change in the range profile.<>
Keywords :
aircraft; interpolation; radar cross-sections; RCS; aircraft wing; flat triangular facet models; ogive-shaped object; patch resolution; radar cross section; range profile; surface interpolation; triangular faceted sphere; Aircraft; Computational modeling; Interpolation; Smoothing methods;
fLanguage :
English
Publisher :
ieee
Conference_Titel :
Antennas and Propagation Society International Symposium, 1992. AP-S. 1992 Digest. Held in Conjuction with: URSI Radio Science Meeting and Nuclear EMP Meeting., IEEE
Conference_Location :
Chicago, IL, USA
Print_ISBN :
0-7803-0730-5
Type :
conf
DOI :
10.1109/APS.1992.221791
Filename :
221791
Link To Document :
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