| ZHAO Jiaqing,ZHANG Lei,DING Xiang,XU Zhongchao,FAN Shiwei,LIU Rongke.Availability evaluation model for space-based optical aerial target detection system[J].Optoelectronics Letters,2023,(10):599-604 |
| Availability evaluation model for space-based optical aerial target detection system |
| Author Name | Affiliation | | ZHAO Jiaqing | Beijing Institute of Tracking and Telecommunication Technology, Beijing 100094, China
Shanghai Aerospace Electronic Technology Research Institute, Shanghai 201109, China
Beihang University, Beijing 100191, China | | ZHANG Lei | Beijing Institute of Tracking and Telecommunication Technology, Beijing 100094, China | | DING Xiang | Beijing Institute of Tracking and Telecommunication Technology, Beijing 100094, China | | XU Zhongchao | Beijing Institute of Tracking and Telecommunication Technology, Beijing 100094, China | | FAN Shiwei | Beijing Institute of Tracking and Telecommunication Technology, Beijing 100094, China | | LIU Rongke | Beihang University, Beijing 100191, China |
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| Abstract: |
| For space-based optical detection systems, there is usually a difference between actual on-orbit operational performance and designed requirements based on fixed scenarios. To assess the availability of space-based optical detection systems in different backgrounds, the radiation characteristics of aerial targets have been simulated using body radiation and atmospheric transmission models. The background radiation characteristics were also statistically analyzed. Then, for the parameters of the fixed space-based optical detection system, the signal-to-clutter and availability were evaluated under different conditions. A linear relationship between the radiation intensity and the flight height of the target was obtained. For a space-based optical detection system, the analytical availability model was constructed. Finally, multiple groups of data under different simulation conditions were used to validate the universality and reliability of the model. This availability model could significantly reduce the time required to predict the availability of the space-based optical detection system. The model was also adopted to analyze the influence of flight height, mean and variance, and background clutter on the space-based optical detection availability. |
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