光学精密工程2025，Vol.33Issue(17)：2744-2753,10.DOI:10.37188/OPE.20253317.2744
面向无人机目标探测的分时型红外偏振成像系统
Time-sharing infrared polarization imaging system for drone target detection
摘要
Abstract
A long-wave infrared time-sharing polarization imaging system was developed to address insta-bility in polarization response during high-speed imaging and to enable detection of UAV targets against strong infrared clutter.An optimal polarization step angle was identified through analysis and angle-error model simulations to minimize polarization error.An adaptive polarization-angle estimation algorithm,based on a time-varying parametric Kalman filter,was implemented to provide accurate angle estimates and maintain a stable polarization response at high frame rates.Experimental results at a 50 Hz imaging rate demonstrate that the filtering algorithm reduces polarization response fluctuations by 91%,achieves a polarization accuracy of 0.50%,and attains a polarization-angle accuracy of 1.52°.Additionally,the tar-get-region contrast in polarization images is enhanced by 3-10×.The proposed imaging system significantly improves UAV target contrast and satisfies detection requirements in environments with strong infrared clutter.关键词
成像系统/红外偏振成像/卡尔曼滤波/对比度提升/背景抑制Key words
imaging systems/infrared polarization imaging/Kalman filter/contrast improvement/back-ground suppression分类
物理学引用本文复制引用
郭杰,赵开春..面向无人机目标探测的分时型红外偏振成像系统[J].光学精密工程,2025,33(17):2744-2753,10.基金项目
国家重点研发计划资助项目(No.2023YFB3906300) （No.2023YFB3906300）
