Journal of the Korea Institute of Military Science and Technology (한국군사과학기술학회지)

The Korea Institute of Military Science and Technology (한국군사과학기술학회)
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Implementation of Virtual Maritime Environment for LWIR Homing Missile Test

원적외선 호밍 유도탄 시험을 위한 가상 해상 환경의 구현

  • Park, Hyeryeong (The 1st Research and Development Institute, Agency for Defense Development)
  • 박혜령 (국방과학연구소 제1기술연구본부)
  • Received : 2015.08.07
  • Accepted : 2016.02.26
  • Published : 2016.04.05
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Abstract

It is essential for generating the synthetic image to test and evaluate a guided missile system in the hardware-in-the-loop simulation. In order to make the evaluation results to be more reliable, the extent of fidelity and rendering performance of the synthetic image cannot be left ignored. There are numerous challenges to simulate the LWIR sensor signature of sea surface depending on the incident angle, especially in the maritime environment. In this paper, we investigate the key factors in determining the apparent temperature of sea surface and propose the approximate formula consisting of optical characteristics of sea surface and sky radiance. We find that the greater the incident angle increases, the larger the reflectivity of sea surface, and the greater the water vapor concentration in atmosphere increases, the larger the amount of sky radiance. On the basis of this information, we generate the virtual maritime environment in LWIR region using the SE-WORKBENCH, physically based rendering software. The margin of error is under seven percentage points.

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References

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