Modeling and simulation of spatial sampling effects in staring FPA detector
-
摘要: 为了增加红外凝视焦平面阵列探测器成像仿真的置信度，对探测器所存在的空间采样效应产生机理进行了分析，并且从空间域角度对其进行了建模，借助于基于图像像素处理的方法进行实验仿真；为了客观地评价空间采样效应对探测器成像质量的影响，定义了图像的负指数型平滑度，实验结果表明，叠加空间采样效应后探测器输出图像的平滑度减小了11.7%，图像局部波动变大，从而验证了红外探测器成像仿真中空间采样效应考虑的必要性。
-
关键词:
- 凝视焦平面阵列探测器 /
- 空间采样效应 /
- 建模仿真
Abstract: To increase the fidelity of infrared staring focal plane array(FPA) detector-s imaging simulation, we analyzed the mechanism of spatial sampling effects in the IRFPA detector,built the model in spatial region,and carried out the simulation experiment based on pixel processing method. In order to objectively evaluate the spatial sampling effects on the detector imaging quality,it defined a negative index of image smoothness. The experimental results show that the smoothness of the detector output image with spatial sampling effects is reduced by 11.7%, and the local fluctuation of image is larger, which verifies the necessity of considering the sampling effects in IR detector imaging simulation. -
-
［1］张建奇，王晓蕊．光电成像系统建模及性能评估理论［M］．西安：西安电子科技大学出版社，2010.
ZHANG Jian-qi，WANG Xiao-rui．Modeling of optical imaging system and performance evaluation theory［M］．Xi-an：Xidian University Press，2010.(in Chinese)
［2］彭新红，吴常泳，陈雨良．采样成像系统的性能评估［J］．红外与毫米波学报，2001，20(6)：477-480.
PENG Xin-hong，WU Chang-yong，CHEN Yu-liang．Performance evaluation of sampled imaging system［J］．Journal Infrared Millimeter and Waves，2001，20(6)：477-480.(in Chinese with an English abstract)
［3］曾凡旋．凝视型高速红外成像系统仿真［D］．西安：西安电子科技大学，2011.
ZENG Fan-xuan．Simulation of staring high-speed infrared imaging system［D］．Xi-an: Xi-an Electronic and Science University，2011.(in Chinese)
［4］航天工业总公司三院8358所．红外成像系统测试与评价［M］．天津：8358所，2006.
The 8358 Department of Third Aerospace Institute．Testing and Evaluation of Infrared Imaging System［M］．Tianjin:No8358 Institute，2006.(in Chinese)
［5］GILLETTE C，STADTMILLER T，HARDIE R．Aliasing reduction in staring infrared imagers utilizing subpixel techniques［J］．Opt. Eng.，1995，34：3130-3137.
［6］航天工业总公司三院8358所．红外与光电系统手册(第四卷)［M］．天津：8358所，2001.
The 8358 Department of Third Aerospace Institute．“Optical and electrics systems design,analysis and testing”Infrared and opt-ele system(Vol IV)［M］．Tianjin:No8358 Institute，2001.(in Chinese)
［7］王晓蕊，张建奇，冯卓祥，等．采样红外成像系统仿真及最小可分辨温差预测方法研究［J］．红外与毫米波学报，2004，23(6)：436-440.
WANG Xiao-rui，ZHANG Jian-qi，FENG Zhuo-xiang，et al．Sampled IR imaging system simulation & MRTD prediction［J］．Journal Infrared Millimeter and Waves，2004，23(6)：436-440. (in Chinese with an English abstract)
［8］陈龙永，梁兴东，丁赤飚．一种ＳＡＲ成像中的非均匀采样重构方法［J］．系统仿真学报，2010，22(5)：1242-1245.
CHEN Long-yong，LIANG Xing-dong，DING Chi-biao．Non-uniform reconstruction method in SAR imaging［J］．Journal of System Simulation，2010，22(5)：1242-1245. (in Chinese with an English abstract)
［9］GRUNDLAND M，PATERA J，Zuzana MAS ‘AKOV’A．Image sampling with quasicrystals［J］．SIGMA，2009，75(5):1-23.
［10］AMIDROR I. Scattered data interpolation methods for electronic imaging systems: a survey［J］. J. Electronic Imaging ,2002,11: 157-176.
［11］王长伟，江月松，刘丽，等．光学综合孔径成像系统探测器采样研究［J］．光电子·激光，2010，21(3)：424-429.
WANG Chang-wei，JIANG Yue-song，LIU Li，et al．Research on detector sampling of optical synthetic aperture imaging systems［J］．Journal of Optoelectronics Laser，2010，21(3)：424-429. (in Chinese with an English abstract)
计量
- 文章访问数: 2569
- HTML全文浏览量: 104
- PDF下载量: 530
下载:
陕公网安备 61011302001501号 