Analysis of Radar Cross Section of the Integrated Mast Module for
                        Battleship

Shin, Hokeun; Lee, Seokgon; Park, Dongmin; Shin, Jinwoo; Chung, Myungsoo; Park, Sang‐Hyun; Park, Yong Bae

doi:10.5515/kjkiees.2017.28.7.584

Cited by 8 publications

(4 citation statements)

References 4 publications

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“…광선 추적기법을 이용해 광선이 도달한 지점을 조명 영역(lit region), 도달하지 못한 지점을 미조명영역(non-lit region)으로 구분한 이후, PO 기법을 이용하여 PEC에 여 기되는 표면 전류를 식 (1)과 같이 정의 [9] 할 수 있다.…”

Section: -2 Physical Opticsunclassified

Radar Cross Section Analysis of Large PEC Structures Using LBVH Traversal

Yoon¹,

Lee²,

Lee³

et al. 2022

J. Korean Inst. Electromagn. Eng. Sci.

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In this study, the radar cross-section (RCS) of a large structure is analyzed using the linear bounding volume hierarchy (LBVH), which is a representative acceleration algorithm of the ray-tracing technique. A ray-tracing technique, which is a high-frequency method, is used to analyze the electromagnetic properties of large structures, and bounding volume hierarchy (BVH), a binary tree structure, is applied to reduce the intersection search time. The improvement in the calculation speed is quantitatively analyzed by dividing an arbitrary scatterer into several triangles. The calculation results are compared with those of multilevel fast multipole method (MLFMM) and ray-launching geometrical optics (RL-GO) using the Feko commercial software to verify the accuracy. The proposed technique can be utilized for the efficient RCS calculations of large structures.

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Section: -2 Physical Opticsunclassified

Radar Cross Section Analysis of Large PEC Structures Using LBVH Traversal

Yoon¹,

Lee²,

Lee³

et al. 2022

J. Korean Inst. Electromagn. Eng. Sci.

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“…After that, the RCS of an initial model of the integrated mast is calculated and analyzed. In order to evaluate the RCS of the integrated mast, the RCS pattern and the representative RCS values such as the geometric mean and the arithmetic mean [3,4,21,22] are used. The geometric mean and the arithmetic mean are given as follows, respectively.…”

Section: Analysis Proceduresmentioning

confidence: 99%

“…As the shape of the integrated mast is one of the most important factors and must be considered in the early stages of the concept/design, it is necessary to know in advance the characteristics of the RCS of the integrated mast and the naval vessel equipped with the integrated mast. To investigate the RCS characteristics of naval vessels, there have been many studies [13,[18][19][20][21][22]. The RCS of naval vessels has been investigated [18,19] and its properties have been analyzed according to the side slope of the superstructure [13] and exterior equipment arrangement such as the sensor and radar [20].…”

Section: Introductionmentioning

confidence: 99%

“…However, related studies on the RCS of the integrated mast itself seem to be lacking. Although the previous studies were conducted to analyze the RCS of the integrated mast [21] and the simplified battleship equipped with the integrated mast [22] an investigation on the optimization of the integrated mast shape for RCS reduction has not been presented. Therefore, it is of great significance to optimize the mast shape for RCS reduction and to analyze the RCS of the naval ship equipped with the optimized mast.…”

Section: Introductionmentioning

confidence: 99%

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Shape Optimization of an Integrated Mast for RCS Reduction of a Stealth Naval Vessel

et al. 2021

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In this paper, we analyze the radar cross section (RCS) of an integrated mast and present the optimized mast shape for RCS reduction. The RCS is simulated using commercial electromagnetic (EM) software based on the shooting and bouncing rays (SBR) method and the diffraction fields at the edges are also considered. Threat frequencies, threat regions and cardinal points are first defined considering the operational environments of a naval vessel. We calculate and analyze the RCS of the integrated mast in terms of the threat frequencies, the shapes of the integrated mast and the direction and polarization of the incident waves. The shape of the integrated mast is optimized based on the shaping technique. The optimized mast has low RCS properties in the primary threat sectors except for the exceptional angle regions.

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