摘要
分块式平面侦察成像系统(Segmented Planar Imaging Detector for Electro-optical Reconnaissance, SPIDER)是基于光子集成回路的干涉成像系统,是提高遥感成像分辨率,降低系统加工难度,减少系统体积、质量、功耗的有效手段之一。首先报告了SPIDER研究现状;并对其基本原理与组成进行了研究;建立了基于部分相干光理论的成像模型;研究了基于平衡正交检测的干涉条纹检测方法;分析了成像系统指标体系;最后对SPIDER成像能力进行了仿真验证。结果表明,SPIDER成像系统具有良好的成像效果,在遥感侦察、空间态势感知等领域具有良好应用潜力。
The Segmented Planar Imaging Detector for Electro-optical Reconnaissance(SPIDER) system is an interferometric imaging system based on photonic integrated circuits. It is one of the effective means to improve the resolution of remote sensing imaging, decrease the difficulty of system processing, and reduce the size, weight and power. The current research status of SPIDER is reported. The basic principle and composition was also studied. An imaging model was established based on partially coherent light theory. The method of interference fringe detection is studied based on balanced four quadrature detectors. The index system of imaging system was also analyzed.Finally, the SPIDER imaging capability was simulated and verified. Based on the results of simulation, the imaging ability of SPIDER can broaden its application in remote sensing reconnaissance, spatial situation awareness and other fields.
引文
[1] 周美江,朱振才,杨根庆,等.天基光学同步带目标监视跟踪模式[J].中国空间科学技术,2015,35(3):35-43.ZHOU M J,ZHU Z C,YANG G Q,et al.GEO objects surveillance and tracking mode of space-based optical system[J].Chinese Space Science and Technology,2015,35(3):35-43 (in Chinese).
[2] DUNCAN A,KENDRICK R L.Segmented planar imaging detector for electro optic reconnaissance:US 8913859 B1[P].Dec.16,2014.
[3] KENDRICK R L,DUNCAN A,OGDEN C,et al.Flat panel space based space surveillance sensor [C].Advanced Maui Optical and Space Surveillance Technologies (AMOS) Conference.Maui,2013.
[4] SCOTT R P,SU T H,OGDEN C,et al.Demonstration of a photonic integrated circuit for multi-baseline interferometric imaging [C].2014 IEEE Photonics Conference (IPC).San Diego,2014.
[5] SHANG K P,PAYHAK S,QIN C,et al.Low-loss compact silicon nitride arrayed waveguide gratings for photonic integrated circuits[J].IEEE Photonics Journal,2017,9(5):6601805.
[6] BADHAM K,DUNCAN A,KENDRICK R L,et al.Testbed experiment for SPIDER:a photonic integrated circuit-based interferometric imaging system[C].Advanced Maui Optical and Space Surveillance Technologies Conference(AMOS).Maui,2017.
[7] SU T H,LIU G Y,BADHAM K E,et al.Interferometric imaging using Si3N4 photonic integrated circuits for a SPIDER imager[J].Optics Express,2018,26(10):12801-12812.
[8] DUNCAN A,KENDRICK R L,OGDEN C,et al.SPIDER:next generation chip scale imaging sensor update [C].Advanced Maui Optical and Space Surveillance Technologies Conference.Maui,2016.
[9] SU T H,SCOTT R P,OGDEN C,et al.Experimental demonstration of interferometric imaging using photonic integrated circuits[J].Optics Express,2017,25(11):12653-12665.
[10] CHU Q,SHEN Y,YUAN M,et al.Numerical simulation and optimal design of segmented planar imaging detector for electro-optical reconnaissance[J].Optics Communications,2017,405:288-296.
[11] 曾德贤,杜小平.像元尺寸对空间光学探测系统性能的影响[J].中国空间科学技术,2011,31(3):51-55.ZENG D X,DU X P.Influence of detector′s pixel size on performance of optical detection system[J].Chinese Space Science and Technology,2011,31(3):51-55(in Chinese).
[12] DUNCAN A,KENDRICK R L,OGDEN C,et al.SPIDER:next generation chip scale imaging sensor [C]//Proceedings of the Advanced Maui Optical and Space Surveillance Technologies Conference.Maui,2014:27.
[13] BADHAM K,KENDRICK R L,WUCHENICH D,et al.Photonic integrated circuit-based imaging system for SPIDER [C].2017 Conference on Lasers and Electro-Optics-Pacific Rim (CLEO-PR).Singapore,2017.
[14] 王思雨,陈立福,袁志辉,等.基于公共余数最优估计的多通道干涉SAR高程重建方法[J].中国空间科学技术,2018,38(2):71-76.WANG S Y,CHEN L F,YUAN Z H,et al.An elevation reconstruction method of multi-channel InSAR based on optimal estimation of common remainder[J].Chinese Space Science and Technology,2018,38(2):71-76 (in Chinese).
[15] 覃智祥.大气湍流对空间光-单模光纤耦合效率影响研究[D].哈尔滨:哈尔滨工业大学,2010.QIN Z X.The research of the impact of atmospheric turbulence on the space light-single mode fiber coupling efficiency[D].Harbin:Harbin Institute of Technology,2010 (in Chinese).
[16] GUYON O.Wide field interferometric imaging with single-mode fibers[J].Astronomy & Astrophysics,2002,387(1):366-378.
[17] DESANTIS Z J,FIENUP J R,BONES P J,et al.Support estimation for phase retrieval image reconstruction from sparse-aperture interferometry data [C]//SPIE Optical Engineering+Applications.San Diego,2012.
[18] 武冬梅,于清华,乐应波,等.分块式平面光电探测成像技术研究[J].红外,2018,39(4):1-6.WU D M,YU Q H,LE Y B,et al.Study of segmented planar imaging detector for electro-optical reconnaissance[J].Infrared,2018,39(4):1-6(in Chinese).