Acta Optica Sinica, Volume. 39, Issue 3, 0304002(2019)
Detection Probability Envelope of Airborne IRST System after Variable Threshold Noise Ratio Optimization
Figures & Tables(16)
Fig. 1. Distribution of false alarm probability with different threshold noise ratio. (a) 0-4; (b) 5-6; (7) 6-7; (d) 12-13
Fig. 6. Flow chart of range solution of threshold noise ratio based on detection distance
Fig. 12. Detection probability envelope under variable or constant threshold noise ratio
Table 1. Parameters of IRST system
View tableTable 1. Parameters of IRST system
τ oΔ f /Hz f /mm F ω δ D 0 /mm λ /μm 0.8 103 400 2 1.5°×1.0° 0.9 200 3-5
Table 2. Values of threshold noise ratio at different detection ranges
View tableTable 2. Values of threshold noise ratio at different detection ranges
R /kmR TNRP dP fa10-28 6.8 0.8-1 10-10 29-50 3-6.4 0.8 2.8×10-10-0.008 51-100 3 0.1-0.78 0.01
Table 3. Values of threshold noise ratio under different object speeds
View tableTable 3. Values of threshold noise ratio under different object speeds
V m /MaR TNRP dP fa0-2.8 3 0.05-0.78 0.01 2.9-3.5 3.4-7 0.8 2.7×10-9-0.003 3.6-5 6.8 0.85-1 0.00001
Table 4. Values of threshold noise ratio with different atmospheric transmissivity
View tableTable 4. Values of threshold noise ratio with different atmospheric transmissivity
τ R TNRP dP fa0-0.58 3 0.02-0.79 0.01 0.59-1 3-4.2 0.8 0.0001-0.0095
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Fang Wang, Tian Kou, Renke Kou, Haiyan Wang. Detection Probability Envelope of Airborne IRST System after Variable Threshold Noise Ratio Optimization[J]. Acta Optica Sinica, 2019, 39(3): 0304002
Paper Information
Category: Detectors
Received: Jul. 19, 2018
Accepted: Nov. 8, 2018
Published Online: May. 10, 2019
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