• Journal of Applied Optics
  • Vol. 43, Issue 4, 641 (2022)
Guan WANG, Huilin WANG*, Kun QIAN, Yu SHEN, and Yun BIAN
Author Affiliations
  • [in Chinese]
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    DOI: 10.5768/JAO202243.0401008 Cite this Article
    Guan WANG, Huilin WANG, Kun QIAN, Yu SHEN, Yun BIAN. Research on atmospheric refraction correction of airborne electro-optical system target location[J]. Journal of Applied Optics, 2022, 43(4): 641 Copy Citation Text show less
    Curve of atmospheric refraction with temperature
    Fig. 1. Curve of atmospheric refraction with temperature
    Curve of atmospheric refraction with pressure
    Fig. 2. Curve of atmospheric refraction with pressure
    Curve of atmospheric refraction with relative humidity
    Fig. 3. Curve of atmospheric refraction with relative humidity
    Curve of atmospheric refraction with wavelength
    Fig. 4. Curve of atmospheric refraction with wavelength
    Schematic diagram of atmospheric refraction in target ranging of airborne electro-optical equipment
    Fig. 5. Schematic diagram of atmospheric refraction in target ranging of airborne electro-optical equipment
    Range error curves at different elevation angles
    Fig. 6. Range error curves at different elevation angles
    Elevation error curves at different elevation angles
    Fig. 7. Elevation error curves at different elevation angles
    Difference curve of positioning errors at different elevation angles
    Fig. 8. Difference curve of positioning errors at different elevation angles
    t≥0℃t<0℃
    a6.11216.1115
    b17.50222.452
    c240.97272.55
    Table 1. Coefficients of ab and c
    海拔高度/m温度/℃大气压/hPa相对湿度/%
    0−0.67102466.93
    500−2.41964.755.42
    1 000−4.14908.345.51
    1 500−5.88854.937.07
    2 000−7.44804.234.15
    18 000−60.38781.9——
    19 000−59.91660.0——
    20 000−58.82558.7——
    Table 2. Average atmospheric parameters for January in (35°N, 120°E) region
    瞄线俯仰角/(°)俯仰角误差/(°)真实距离/m测距误差/m定位误差/m
    100.0331121 202.2513.8771.38
    200.015259 140.076.6517.00
    300.009540 178.084.518.02
    400.006531 179.753.494.97
    500.004626 135.242.933.59
    600.003123 105.342.592.88
    700.00221 287.702.382.49
    800.00120 309.462.272.30
    90020 0002.242.24
    Table 3. Comparison of range error and positioning error caused by 20 000 m sea surface atmospheric environment
    Guan WANG, Huilin WANG, Kun QIAN, Yu SHEN, Yun BIAN. Research on atmospheric refraction correction of airborne electro-optical system target location[J]. Journal of Applied Optics, 2022, 43(4): 641
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