Estimation method of infrared detection range for reentry target based on signal-to-clutter ratio

Zihui Zhu; Wenlin Cai; Jianhua Li; Xia Ai; Lu Gao; Jiaqi Liu

doi:10.1117/12.2602874

24 November 2021 Estimation method of infrared detection range for reentry target based on signal-to-clutter ratio

Zihui Zhu, Wenlin Cai, Jianhua Li, Xia Ai, Lu Gao, Jiaqi Liu

Proceedings Volume 12061, AOPC 2021: Infrared Device and Infrared Technology; 120610D (2021) https://doi.org/10.1117/12.2602874
Event: Applied Optics and Photonics China 2021, 2021, Beijing, China

Abstract

The range analysis of the infrared detection system is the first task in the design of the detection system. The traditional range model based on the signal-to-noise ratio is only suitable for a uniform background. For complex backgrounds, the fluctuation of background clutter is the main factor restricting the detection distance, and the results based on the signal-to-noise ratio model may deviate greatly from the actual situation. Based on the characteristics of the re-entry process, this paper analyzes the dynamic process, and establishes an infrared detection distance analysis model based on the signal-to-clutter ratio. The radiation flux between the background and the target is calculated, and the infrared detection band selection is simulated. On this basis, the analysis and calculation of the infrared detection distance under different cloud conditions are carried out, and the similarities and differences between the signal-to-noise ratio model and the signal-to-clutter ratio model are compared, which can provide references for the design of infrared detection systems in practical applications.

Citation Download Citation

Zihui Zhu, Wenlin Cai, Jianhua Li, Xia Ai, Lu Gao, and Jiaqi Liu "Estimation method of infrared detection range for reentry target based on signal-to-clutter ratio", Proc. SPIE 12061, AOPC 2021: Infrared Device and Infrared Technology, 120610D (24 November 2021); https://doi.org/10.1117/12.2602874

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