수상함의 동적 레이더 반사면적 해석 기법 연구
A Study on a Dynamic Radar Cross Section Analysis Technique for a Surface Warship
1
조회
0
다운로드
2
인용
0
참고문헌
키워드
초록
The radar cross section (RCS) of a warship is one of the most important design features in terms of her survivability in hostile environments. Ocean waves continuously changes the attitude of an objective warship to hostile radar and distorts the RCS as a result. This paper presents a dynamic RCS analysis technique and procedure that considers temporal ship motion. First, data sets are prepared for ship motions in 6 degrees of freedom, which are numerically simulated for an objective warship via frequency to time domain conversion with response amplitude operators and specified ocean wave spectra. Second, a series of RCS analysis models are transformed geometrically by referring to ship motion data sets. Finally, temporal RCS analyses are carried out with the RCS simulation code, SYSCOS. As an example, RCS analysis results are given for a virtual warship, which show that ship motions temporally change RCS values and cause RCS reduction compared with static value in terms of mean values.
Abstract
The radar cross section (RCS) of a warship is one of the most important design features in terms of her survivability in hostile environments. Ocean waves continuously changes the attitude of an objective warship to hostile radar and distorts the RCS as a result. This paper presents a dynamic RCS analysis technique and procedure that considers temporal ship motion. First, data sets are prepared for ship motions in 6 degrees of freedom, which are numerically simulated for an objective warship via frequency to time domain conversion with response amplitude operators and specified ocean wave spectra. Second, a series of RCS analysis models are transformed geometrically by referring to ship motion data sets. Finally, temporal RCS analyses are carried out with the RCS simulation code, SYSCOS. As an example, RCS analysis results are given for a virtual warship, which show that ship motions temporally change RCS values and cause RCS reduction compared with static value in terms of mean values.
참고문헌 (11)
- 김국현, "회전 표적의 고주파수 후방산란단면적 해석", 한국군사과학기술학회지, 10(3), pp.16~24 (2007), 한국군사과학기술학회
- 김국현, "해상 풍력발전기의 전자기파 산란에 관한 수치 시뮬레이션", 대한조선학회 논문집, 46(5), pp.536~544 (2009), 대한조선학회
- 기하광학, "물리광학 혼합방법을 이용한 수상함의 RCS 해석코드 개발", 조대승, 2004, ASERC Report no. 2004-05-10
- Jamil, K., "Radar Scattering from a Rolling Target Floating on a Time-evolving Rough Sea Surface", IEEE Trans. on Geoscience and Remote Sensing, 44(11), pp.3330~3337 (2006)
- Lewis, E.V., "Principles of Naval Architecture vol III: Motions in Waves and Controllability. 3rd ed" (1988), Society of Naval Architects and Marine Engineers
- MOERI, "선박내항성능 해석 프로그램(MOTNHW) 사용자 지침서 ver. 2.0" (2002), KORDI
- Ojeda, J.F., "Experimental Verification of the Relation between the Radar Cross Section and the List Angle of Surface Vessels", Microwave and Optical Technology Letters, 48(11), pp.2237~2241 (2006)
- Simulation of ship motion in seaway, "Pẻrez, T.", University of Newcastle, ~, pp.Technical Report EE2037 (2002)
- 함정설계 특별강좌: 특수성능분야(RCS 감소설계), "RIMSE", 서울대학교 해양시스템공학 연구소, ~ (2009)
- Tice, T.E., "An Overview of Radar Cross Section Measurement", IEEE Trans. on Instrumentation and Measurement, 39(1), pp.205~207 (1990)
- Test plan for full-scale radar signature measurements, "Upson, C.", BAE SYSTEMS, ~, pp.YD1484 (2001), RCS[DOI]