Laser & Optoelectronics Progress, Volume. 56, Issue 12, 121204(2019)
Calculation Method for Extended Source Target Radiance Based on Background Offset Cancellation
Figures & Tables(5)
Fig. 2. Calibration background bias of middle-wave infrared detector versus ambient temperature
Fig. 3. Calibration background bias of long-wave infrared detector versus ambient temperature
Table 1. Calculation results of middle-wave infrared radiance of aircraft
View tableTable 1. Calculation results of middle-wave infrared radiance of aircraft
Calculation method Gain Bias Atmos pheric transmissivity Path radiation back ground radiation Nose radiation / (W·sr-1·m-2) Fuselage radiation / (W·sr-1·m-2) Jet nozzle radiation / (W·sr-1·m-2) Eq. (1) 423.124 2335 0.3504 0.264 - -0.889 -1.990 -0.022 Eq. (5) 423.124 - 0.3504 0.264 0.2665 1.289 0.432 2.402
Table 2. Calculation results of long-wave infrared radiance of aircraft
View tableTable 2. Calculation results of long-wave infrared radiance of aircraft
Calculation method Gain Bias Atmos pheric transmissivity Path radiation back ground radiation Nose radiation / (W·sr-1·m-2) Fuselage radiation / (W·sr-1·m-2) Jet nozzle radiation / (W·sr-1·m-2) Eq. (1) 55.794 3340 0.6156 6.3169 - -0.188 0.686 6.451 Eq. (5) 55.794 - 0.6156 6.3169 6.5637 4.943 5.816 11.581
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Yuanxing He, Wentao Si, Haoyuan Zhang, Shiqi Gan, Tongbang Wu. Calculation Method for Extended Source Target Radiance Based on Background Offset Cancellation[J]. Laser & Optoelectronics Progress, 2019, 56(12): 121204
Paper Information
Category: Instrumentation, Measurement and Metrology
Received: Dec. 4, 2018
Accepted: Jan. 11, 2019
Published Online: Jun. 13, 2019
The Author Email: Si Wentao (578043544@qq.com)
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