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    Journals >Acta Photonica Sinica >Volume 49 >Issue 12 >Page 138 > Article
    • Acta Photonica Sinica
    • Vol. 49, Issue 12, 138 (2020)
    An Effectiveness Evaluation Method for Space-based Optical Imaging Systems
    Xiao-tian LU1, Feng LI1, Bian XIAO1,2, Xue YANG1..., Lei XIN1, Ming LU1 and Zhi-jia LIU3|Show fewer author(s)
    Author Affiliations
  • 1Qian Xuesen Laboratory of Space Technology， Beijing00094， China
  • 2Henan University， Kaifeng， Henan475000， China
  • 3DFH Satellite Co.， Ltd， Beijing100094， China
    • show less
    DOI: 10.3788/gzxb20204912.1212002 Cite this Article
    Xiao-tian LU, Feng LI, Bian XIAO, Xue YANG, Lei XIN, Ming LU, Zhi-jia LIU. An Effectiveness Evaluation Method for Space-based Optical Imaging Systems[J]. Acta Photonica Sinica, 2020, 49(12): 138 Copy Citation Text show less
    Discrimination measureDescriptionOne-dimensional (1-D) criteria (number cycles) nTwo-dimensional (2-D) criteria (number cycles) n
    DetectionBlob has a reasonable probability of being the sought object1.00.75
    RecognitionObject discerned with sufficient clarity such that its specific class can be differentiated (tank, truck, man)4.03.0
    IdentificationObject discerned with sufficient clarity to specify the type within a class (T-62, T-72, M1 tanks)8.06.0
    Table 1. Johnson criteria
    View in the Article
    Parameter nameNumberParameter nameNumber
    Diameter of aperture20 mmFocal length5 mm
    Transmittance of optical system0.7GSD0.5 m
    Height586 mSNRDT2.25
    Table 2. The relevant parameters of aviation experiment
    View in the Article
    Parameter nameNumberParameter nameNumber
    Dynamic range≥25 dB (θ=20°，ρ=0.05)；≥46 dB (θ=70°，ρ=0.65)
    Relative aperture1/15MTF0.12
    Focal length7.8 mGSD0.8 m
    Orbital height631 kmSNRDT2.25
    Table 3. Main technical parameters of GF-2 satellite
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    Figures&Tables (3)
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    Xiao-tian LU, Feng LI, Bian XIAO, Xue YANG, Lei XIN, Ming LU, Zhi-jia LIU. An Effectiveness Evaluation Method for Space-based Optical Imaging Systems[J]. Acta Photonica Sinica, 2020, 49(12): 138
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    Paper Information
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