空天预警研究学报2024，Vol.38Issue(1)：6-10,5.DOI:10.3969/j.issn.2097-180X.2024.01.002
可见光载荷对云海背景下某型隐身飞机探测能力研究
Research on detection capability of some kind of stealth aircraft by visible light detector payload under cloud-sea background
田浩 1蔡盛 1王旌尧 1王久龙1
作者信息
- 1. 中国科学院长春光学精密机械与物理研究所,长春 130033
- 折叠
摘要
Abstract
In order to study the detection capability of visible light detector to a certain stealth aircraft,firstly,a multidirectional absorption-scattering model for coupled cloud-sea-atmosphere background in visible light band is established.Then,by modeling and analyzing the reflection characteristics of the geometric cross section of the aircraft skin and tail flame under different solar incidence angles and satellite observation angles,the spectral ener-gy distribution of the target and the background reaching the focal plane of the detector are calculated,so as to get the minimum signal to noise ratio for image recognition and maximum detection range in the given lighting condi-tions.Finally,the simulated imaging results verify the correctness of the analysis model and the reliability of the conclusion.The analysis results are shown as follows:When the cloud and sea are taken as the background of ground object observation,the upward reflection characteristics of clouds have the most significant influence on the detectability of aircraft;when the solar incidence angle is less than 60°,the surface bidirectional reflectance distribution function(BRDF)of the aircraft skin is obviously higher than that of the sea surface;when the solar in-cidence angle exceeds 60°,the reflection of sunlight by clouds and sea surface dominates.关键词
隐身飞机/探测能力/云海背景/可见光探测器/表面双向反射率/太阳入射角Key words
stealth aircraft/detection capability/cloud-sea background/visible light detector/BRDF/solar incident angle分类
信息技术与安全科学引用本文复制引用
田浩,蔡盛,王旌尧,王久龙..可见光载荷对云海背景下某型隐身飞机探测能力研究[J].空天预警研究学报,2024,38(1):6-10,5.
