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논문 기본 정보

자료유형
학술저널
저자정보
Duck-Lae Kim (LIG Nex1) Bo Hee Jung (LIG Nex1) Hyun-Bae Kong (LIG Nex1) Chang-Min Ok (LIG Nex1) Seung-Tae Lee (LIG Nex1)
저널정보
한국광학회 Current Optics and Photonics Current Optics and Photonics Vol.3 No.1
발행연도
2019.2
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8 - 15 (8page)

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We describe a common optical system that merges a LADAR system, which generates a point cloud, and a more traditional imaging system operating in the LWIR, which generates image data. The optimum diameter of the entrance pupil was determined by analysis of detection ranges of the LADAR sensor, and the result was applied to design a common optical system using LADAR sensors and LWIR sensors; the performance of these sensors was then evaluated. The minimum detectable signal of the 128 × 128-pixel LADAR detector was calculated as 20.5 nW. The detection range of the LADAR optical system was calculated to be 1,000 m, and according to the results, the optimum diameter of the entrance pupil was determined to be 15.7 cm. The modulation transfer function (MTF) in relation to the diffraction limit of the designed common optical system was analyzed and, according to the results, the MTF of the LADAR optical system was 98.8% at the spatial frequency of 5 cycles per millimeter, while that of the LWIR optical system was 92.4% at the spatial frequency of 29 cycles per millimeter. The detection, recognition, and identification distances of the LWIR optical system were determined to be 5.12, 2.82, and 1.96 km, respectively.

목차

I. INTRODUCTION
II. ATMOSPHERIC-CONDITION ANALYSIS
III. LADAR SENSOR DETECTION-RANGE ANALYSIS
IV. DESIGN OF A COMMON OPTICAL SYSTEM
V. CONCLUSION
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