空中目标夜间不同方位长波红外辐射特性分析

邹前进; 刘胜利; 刘小虎; 陆静; 陆洪涛; 王东; 陈育斌

空中目标夜间不同方位长波红外辐射特性分析

63891部队, 河南洛阳 471003

详细信息

作者简介:
邹前进（1982-），男，高级工程师，主要从事光电及光电对抗技术研究。E-mail：zouqianjin1982@163.com

中图分类号: P422
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- 被引次数: 0
出版历程
- 收稿日期: 2022-08-23
- 修回日期: 2022-09-21
- 刊出日期: 2023-01-20

Analysis of Long-wave Infrared Radiation Characteristics of Aerial Target in Different Azimuth at Night

No. 63891 Troops of PLA, Luoyang 471003, China

摘要

摘要: 针对试验和训练中靶机实装模拟、建模仿真需求，需在外场动态测试靶机飞行状态下红外辐射特性，该测量结果置信度较高。本文通过对红外成像测量设备定标，计算路径辐射和透过率，亮度反演的方法获得了靶机夜间不同方位辐射强度分布，测量误差约为21.24%。分析测量结果，但当靶机相对测量设备绕飞时，靶机不同方位辐射强度基本一致；靶机在一定距离外无法探测长波尾焰辐射，在靶机模拟和建模中需合理考虑尾焰辐射。该距离下靶机目标/背景灰度对比度约为人眼响应阈值的2倍，人工侦察探测识别较为困难，在靶机外场模拟时需注意对比度对试验探测识别结果的影响。本文可为靶机特性建模、外场模拟应用和测量设备研制提供支撑。
- 夜间长波红外辐射特性 /
- 不同方位 /
- 靶机 /
- 辐射强度分布
Abstract: Aiming at the requirements of target drone applications, modeling and simulation, outfield testing of infrared radiation characteristics of target drone in flight is necessary, and the results have high confidence level. In this paper, the radiation intensity distribution of the target drone in different azimuth at night is obtained by calibrating the infrared measuring equipment infrared imaging measurement equipment, calculating the path radiation and transmittance, and radiance retrieval. The measurement error is about 21.24 %. The radiation intensity is affected by other factors. When the target drone is flying around the equipment, the radiation intensity in different azimuth is basically the same. Tail flame is difficult to detect in long-wave infrared band. In the characteristics simulation and modeling of target drone, the influence of tail flame radiation has little effect. At this distance, the gray contrast between the target and background is only about twice the contrast response threshold of eye. The target drone is hard to track by manual detecting. It should be paid attention to the influence of contrast in the characteristics simulation of target drone. The research results of this paper can provide support for characteristics simulation and modeling of target drone and development of infrared measuring equipment.
- LW infrared radiation characteristics at night /
- different azimuth /
- target drone /
- radiation intensity distribution

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图 1 测量设备布局示意图

Figure 1. Layout of measuring equipment

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图 2 测量设备定标结果

Figure 2. Calibration results of measuring equipment

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图 3 不同方位辐射强度示意图

Figure 3. Radiation intensity in different azimuth

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图 4 目标背景对比度变化示意图

Figure 4. The contrast change of target and background

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图 5 不同方位平均辐射亮度示意图

Figure 5. The average radiation luminance in different azimuth

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图 6 路径辐射和透过率变化示意图

Figure 6. The monthly contrast at high and low altitude

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图 7 目标降落段航迹示意图

Figure 7. The flight path of target drone in landing

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表 1 黑体参数

Table 1. Parameters of blackbody

Parameters	Parameter ranges
Temperature range/℃	0~100
Radiation area/mm	300×300
emissivity	0.98±0.02
Temperature resolution/℃	0.01
Temperature accuracy/℃	±0.03
Uniformity/℃	0.4

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