Journal of Infrared and Millimeter Waves, Volume. 44, Issue 2, 227(2025)
Aircraft altitude estimate method based on thermal infrared multispectral feature matching
Figures & Tables(11)
Fig. 2. Radiation characteristics of aircraft skin under different environmental temperature conditions：(a)skin temperature at different speeds; (b)irradiance of aircraft skin
Fig. 3. Atmospheric radiation characteristics based on MODTRAN model：(a) atmosphere transmittances at different altitudes；(b) atmosphere path radiances at different altitudes
Fig. 4. TOA spectral curves of aircraft at different altitudes (spectral resolution of 100nm): (a) mid-latitude summer; (b) tropical
Fig. 7. Estimate results of aircraft at 8 km altitude under different test cases
Table 1. The parameters of aerial target detection model
View tableView in ArticleTable 1. The parameters of aerial target detection model
变量 数值 波长范围 8~14 μm 光谱分辨率 100 nm 背景环境温度 280 ~300 K 地理位置 高纬度、中纬度、低纬度 季节 夏季、冬季 昼夜 昼间、夜间 目标飞行高度 0~12 km 目标飞行速度 0~1 Ma 目标蒙皮发射率 0.8~0.95
Table 2. Parameters of the simulation target
View tableView in ArticleTable 2. Parameters of the simulation target
背景环境温度 机身发射率 飞行速度 杂波比例 大气模型 Test1 295 K 0.9 0.95 Ma 0 中纬度夏季 Test2 290 K 0.9 0.8 Ma 0 中纬度夏季 Test3 290 K 0.95 0.95 Ma 0 中纬度夏季 Test4 298 K 0.95 0.8 Ma 0 中纬度夏季 Test5 290 K 0.9 0.95 Ma 5% 中纬度夏季 Test6 290 K 0.9 0.95 Ma 0 中纬度冬季
Table 3. Comparison between the actual altitude of target and the altitude estimate results of the proposed method
View tableView in ArticleTable 3. Comparison between the actual altitude of target and the altitude estimate results of the proposed method
估计高度/km ADS-B高度/km 相对偏差/km Target 1 11 10.67 0.33 Target 2 8 9.52 1.52 Target 3 10 10.97 0.97 Target 4 9 8.37 0.63 Target 5 9 10.06 1.06 Target 6 7 8.59 1.59 平均误差 1.02
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Li-Feng YANG, Zhuo CHEN, Fan-Sheng CHEN, Jian-Yu WANG. Aircraft altitude estimate method based on thermal infrared multispectral feature matching[J]. Journal of Infrared and Millimeter Waves, 2025, 44(2): 227
Paper Information
Category: Infrared Optoelectronic System and Application Technology
Received: May. 7, 2024
Accepted: --
Published Online: Mar. 14, 2025
The Author Email: WANG Jian-Yu (jywang@mail.sitp.ac.cn)
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