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A Feasibility Study on the Probabilistic Method for the Naval Ship Infra-red Signature Management

함정적외선신호 관리를 위한 확률론적 방법의 가능성 연구

  • Park, Hyun-jung (Ship Infra-Red Signature Research Center of Dong-Eui University) ;
  • Kang, Dae-soo (Ship Infra-Red Signature Research Center of Dong-Eui University) ;
  • Cho, Yong-jin (Naval Architecture and Ocean Engineering of Dong-Eui University)
  • 박현정 (동의대학교 부설 함정적외선신호연구소) ;
  • 강대수 (동의대학교 부설 함정적외선신호연구소) ;
  • 조용진 (동의대학교 조선해양공학과)
  • Received : 2019.01.15
  • Accepted : 2019.04.15
  • Published : 2019.10.20

Abstract

It is essential to reduce the Infra-red signature for increasing ship's survivability in ship design stage. However the ship's IR signature is quite sensitive to the maritime and atmosphere. Therefore, it is very important to select the marine meteorological data to be applied to the signature analysis. In this study, we selected the three meteorological sample sets from the population of the Korea Meteorological Administration's marine environment data in 2017. These samples were selected through the two-dimensional stratified sampling method, taking into account the geopolitical threats of the Korean peninsula and the effective area of the buoy. These sample sets were applied to three naval ships classified by their tonnage, and then the IR signature analysis was performed to derive the Contrast Radiant Intensity (CRI) values. Based on the CRI values, the validity of each sample set was determined by comparing Cumulative Distribution Function (CDF), and Probability Density Function (PDF). Also, we checked the degree of scattering in each sample set and determined the efficiency of analysis time and cost according to marine meteorological sample sets to confirm the possibility of a probabilistic method. Through this process, we selected the standard for optimization of marine meteorological sample for ship IR signature analysis. Based on this optimization sample, by applying probabilistic method to the management of IR signature for naval ships, the robust design is possible.

Keywords

References

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