滚仰式红外导引头极端温度下成像仿真
Imaging Simulation of Roll-Pitch Infrared Homing Head at Extreme Temperature
张家铭 1江伦 2张晓菲2
作者信息
- 1. 长春理工大学光电工程学院,吉林 长春 130022
- 2. 长春理工大学光电工程学院,吉林 长春 130022;长春理工大学空间光电技术研究所,吉林 长春 130022
- 折叠
摘要
针对在高能激光照射下,导引头升温造成的自身热辐射升高严重影响光学系统的信噪比(SNR)和成像质量的问题,以3～5 μm波段滚仰式红外导引头光学系统为例进行仿真,着重对红外导引头光学系统在高能激光照射下的温度效应进行研究,探讨内部温度上升对红外导引头性能的影响.结果表明,当内部温度从293.15 K上升至1073.15 K时,光学系统的SNR从8.73衰减至几乎为0,使导引头完全失去对目标的识别能力.研究强调在设计导引头系统时需重点考虑光学元件的热稳定性,确保导引头在工作中的成像质量和制导精度.这一研究不仅有助于改进当前的导引头设计,而且为后续高能激光防御系统的发展提供了理论基础.
Abstract
The temperature increase of homing head caused by thermal radiation increase under high-energy laser irradiation,severely affects the signal-to-noise ratio(SNR)and imaging quality of optical systems.To address this issue,this study simulates an optical system of a roll-pitch infrared homing head in the 3‒5 μm band,focuses on the temperature effects on the optical system under high-energy laser irradiation,and explores the impact of the internal temperature rise on the infrared homing head performance.Results show that as the internal temperature rises from 293.15 K to 1073.15 K,the SNR of the optical system decreases from 8.73 to～0,causing the homing head to completely lose its target recognition capability.Thus,this research emphasizes the need to focus on the thermal stability of optical components when designing homing head systems to ensure their imaging quality and guidance precision during operation.This study not only helps improve the current design of homing heads but also provides a theoretical foundation for the development of subsequent high-energy laser defense systems.
关键词
红外导引头/温度效应/自辐射/信噪比/成像质量Key words
infrared homing head/temperature effect/self-radiation/signal-to-noise ratio/imaging quality引用本文复制引用
出版年
2024
NETL
NSTL
万方数据