Journal of Applied Optics, Volume. 43, Issue 4, 641(2022)
Research on atmospheric refraction correction of airborne electro-optical system target location
Figures & Tables(11)
Fig. 5. Schematic diagram of atmospheric refraction in target ranging of airborne electro-optical equipment
Fig. 8. Difference curve of positioning errors at different elevation angles
Table 1. Coefficients of
a 、b andc View tableView in ArticleTable 1. Coefficients of
a 、b andc t≥0℃ t<0℃ a 6.1121 6.1115 b 17.502 22.452 c 240.97 272.55
Table 2. Average atmospheric parameters for January in (35°N, 120°E) region
View tableView in ArticleTable 2. Average atmospheric parameters for January in (35°N, 120°E) region
海拔高度/m 温度/℃ 大气压/hPa 相对湿度/% 0 −0.67 1024 66.93 500 −2.41 964.7 55.42 1 000 −4.14 908.3 45.51 1 500 −5.88 854.9 37.07 2 000 −7.44 804.2 34.15 … … … … 18 000 −60.38 781.9 —— 19 000 −59.91 660.0 —— 20 000 −58.82 558.7 ——
Table 3. Comparison of range error and positioning error caused by 20 000 m sea surface atmospheric environment
View tableView in ArticleTable 3. Comparison of range error and positioning error caused by 20 000 m sea surface atmospheric environment
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 10 0.0331 121 202.25 13.87 71.38 20 0.0152 59 140.07 6.65 17.00 30 0.0095 40 178.08 4.51 8.02 40 0.0065 31 179.75 3.49 4.97 50 0.0046 26 135.24 2.93 3.59 60 0.0031 23 105.34 2.59 2.88 70 0.002 21 287.70 2.38 2.49 80 0.001 20 309.46 2.27 2.30 90 0 20 000 2.24 2.24
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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
Paper Information
Category: OE SYSTEM AND ENGINEERING
Received: May. 7, 2022
Accepted: --
Published Online: Aug. 10, 2022
The Author Email: Huilin WANG (whl205316@163.com)
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