主动照明强度相干成像散斑效应仿真及实验研究
|
摘要
简述了强度相干成像原理,分析了照明激光散斑效应,并仿真了散斑效应对频谱模值的影响,利用数字微镜阵列设计实验,根据自适应望远镜测得的波前数据设置数字微镜阵列翻转状态,对不同目标采集光强涨落信息,利用基于先验信息的迭代算法进行图像恢复.结果表明:目标散斑光场强度涨落服从负指数分布;散斑光场使得目标频谱模值高频部分出现误差;利用基于先验信息的迭代算法能较好地恢复目标图像,目标恢复图像峰值信噪比最高可达29.87dB.
The principle of intensity correlation imaging is demonstrated in this paper.Besides,the speckle effect of illumination laser is analyzed and the influence on spectral modulus induced by speckle effect is also analyzed with the aid of simulation.The digital micromirror array is used to design the experiment.Utilizing the wavefront data measured by the adaptive optical telescope,the rotational state of digital micromirror array can be set.Hence,the information of intensity fluctuation from different targets can be obtained.Then,the image restoration can be realized using prior information iteration algorithm.The results show that the intensity fluctuation of the target speckle light field obeys the negative exponential distribution.Apart from that,the speckle light field makes the error of the high frequency part of the target spectral modulus.Using the prior information iteration algorithm can recover the target image well,and the peak signal-to-noise ratio of the target recovery image can reach up to29.87 dB.
The principle of intensity correlation imaging is demonstrated in this paper.Besides,the speckle effect of illumination laser is analyzed and the influence on spectral modulus induced by speckle effect is also analyzed with the aid of simulation.The digital micromirror array is used to design the experiment.Utilizing the wavefront data measured by the adaptive optical telescope,the rotational state of digital micromirror array can be set.Hence,the information of intensity fluctuation from different targets can be obtained.Then,the image restoration can be realized using prior information iteration algorithm.The results show that the intensity fluctuation of the target speckle light field obeys the negative exponential distribution.Apart from that,the speckle light field makes the error of the high frequency part of the target spectral modulus.Using the prior information iteration algorithm can recover the target image well,and the peak signal-to-noise ratio of the target recovery image can reach up to29.87 dB.
引文
[1]ZHANG Jing-xu.Progress in foreign ground-based optoelectronic detecting system for space target detection[J].Chinese Journal of Optics and Applied Optics,2009,2(1):10-16.张景旭.国外地基光电系统空间目标探测的进展[J].中国光学与应用光学,2009,2(1):10-16.
[2]QIAO Yan-feng,LIU Kun,DUAN Xiang-yong.Optical synthetic aperture imaging techniques and development[J].Chinese Journal of Optics and Applied Optics,2009,3(3):175-183.乔彦峰,刘坤,段相永.光学合成孔径成像技术及发展现状[J].中国光学与应用光学,2009,3(3):175-183.
[3]施亚齐,戴梦楠.激光原理与技术[M].华中科技大学出版社,2012.
[4]LI Xi-yu,GAO Xin,TANG jia,et al.Intensity correlation imaging technology for high earth orbit objects[J].Journal of Spacecraft TT&C Technology,2014,33(4):348-353.李希宇,高昕,唐嘉,等.面向高轨目标的强度相干成像技术研究[J].飞行器测控学报,2014,33(4):348-353.
[5]GAO Xin,FENG Ling-jie,LU Chang-ming,et al.Improved phase retrieval method of high-order optical intensity correlation imaging[J].Acta Photonica Sinica,2017,46(6):0610001.高昕,冯灵洁,陆长明,等.高阶光学强度相干成像的相位恢复方法改进[J].光子学报,2017,46(6):0610001.
[6]饶瑞中.现代大气光学[M].科学出版社,2012.
[7]GAO Xin,LI Xi-yu,FENG Ling-jie,et al.Amelioration and simulation of coincidence counting towards intensity correlation imaging[J].Infrared and Laser Engineering,2015,44(11):3454-3462.高昕,李希宇,冯灵洁,等.强度相干成像中符合计数方法的优化与仿真[J].红外与激光工程,2015,44(11):3454-3462.
[8]GOODMAN J W.Statistical optics[M].Courier Dover Publications,2004.
[9]BRIERS J D.Speckle fluctuations as a screening test in the holographic measurement of plant motion and growth[J].Journal of Experimental Botany,1978,29(109):395-399.
[10]田玉珍.激光照明主动成像光场闪烁及散斑抑制分析研究[D].中国科学院研究生院(长春光学精密机械与物理研究所),2014.
[11]JOSEPH W.GOODMAN.Speckle Phenomena in Optics Theory and Applications[M].CAO Qi-zhi,CHEN Jia-bi,transl.Beijing:Science Press,2009.古德曼.光学中的散斑现象:理论与应用[M].曹其智,陈家璧,译.北京:科学出版社,2009.
[12]DAINTY J C,ENNOS A E,FRANCON M,et al.Laser speckle and related phenomena[J].Optica Acta International Journal of Optics,1984,23(10):842-843.
[13]GAO Xin,LI Xi-yu,WANG Bin,et al.Improved experiment method for intensity correlation imaging in laboratory[J].Optics and Precision Engineering,2015,23(1):83-92.高昕,李希宇,王斌,等.改进的强度相干成像室内实验方法[J].光学精密工程,2015,23(1):83-92.
[14]GAO Xin,LI Xi-yu,TANG Jia,et al.Ameliorated method of intensity correlation imaging towards high-orbit satellites[J].Acta Optica Sinica,2015,36(6):73-79.高昕,李希宇,唐嘉,等.面向高轨目标的强度相干成像方法改进研究[J].光学学报,2015,36(6):73-79.
[15]李正炜.基于压缩传感理论的单像素相机成像研究[D].中国科学院研究生院(长春光学精密机械与物理研究所),2012.
[16]BROWN R H T R Q.A test of a new type of stellar interferometer on sirius[J].Nature,1956,178(4541):1046-1048.
[17]STREKALOV D V K I Y N.Imaging dark objects with intensity interferometry[J].Optics Express,2014,22(10):12339-12348.
[18]HAN Shen-sheng,GONG Wen-lin,CHEN Ming-liang,et al.Research progress of GISC lidar[J].Infrared and Laser Engineering,2015,44(9):2547-2555.韩申生,龚文林,陈明亮,等.基于稀疏和冗余表象的鬼成像雷达研究进展[J].红外与激光工程,2015,44(9):2547-2555.
[19]SUN M J,EDGAR M P,GIBSON G M,et al.Single-pixel three-dimensional imaging with time-based depth resolution[J].Nature Communications,2016(7):12010.
[2]QIAO Yan-feng,LIU Kun,DUAN Xiang-yong.Optical synthetic aperture imaging techniques and development[J].Chinese Journal of Optics and Applied Optics,2009,3(3):175-183.乔彦峰,刘坤,段相永.光学合成孔径成像技术及发展现状[J].中国光学与应用光学,2009,3(3):175-183.
[3]施亚齐,戴梦楠.激光原理与技术[M].华中科技大学出版社,2012.
[4]LI Xi-yu,GAO Xin,TANG jia,et al.Intensity correlation imaging technology for high earth orbit objects[J].Journal of Spacecraft TT&C Technology,2014,33(4):348-353.李希宇,高昕,唐嘉,等.面向高轨目标的强度相干成像技术研究[J].飞行器测控学报,2014,33(4):348-353.
[5]GAO Xin,FENG Ling-jie,LU Chang-ming,et al.Improved phase retrieval method of high-order optical intensity correlation imaging[J].Acta Photonica Sinica,2017,46(6):0610001.高昕,冯灵洁,陆长明,等.高阶光学强度相干成像的相位恢复方法改进[J].光子学报,2017,46(6):0610001.
[6]饶瑞中.现代大气光学[M].科学出版社,2012.
[7]GAO Xin,LI Xi-yu,FENG Ling-jie,et al.Amelioration and simulation of coincidence counting towards intensity correlation imaging[J].Infrared and Laser Engineering,2015,44(11):3454-3462.高昕,李希宇,冯灵洁,等.强度相干成像中符合计数方法的优化与仿真[J].红外与激光工程,2015,44(11):3454-3462.
[8]GOODMAN J W.Statistical optics[M].Courier Dover Publications,2004.
[9]BRIERS J D.Speckle fluctuations as a screening test in the holographic measurement of plant motion and growth[J].Journal of Experimental Botany,1978,29(109):395-399.
[10]田玉珍.激光照明主动成像光场闪烁及散斑抑制分析研究[D].中国科学院研究生院(长春光学精密机械与物理研究所),2014.
[11]JOSEPH W.GOODMAN.Speckle Phenomena in Optics Theory and Applications[M].CAO Qi-zhi,CHEN Jia-bi,transl.Beijing:Science Press,2009.古德曼.光学中的散斑现象:理论与应用[M].曹其智,陈家璧,译.北京:科学出版社,2009.
[12]DAINTY J C,ENNOS A E,FRANCON M,et al.Laser speckle and related phenomena[J].Optica Acta International Journal of Optics,1984,23(10):842-843.
[13]GAO Xin,LI Xi-yu,WANG Bin,et al.Improved experiment method for intensity correlation imaging in laboratory[J].Optics and Precision Engineering,2015,23(1):83-92.高昕,李希宇,王斌,等.改进的强度相干成像室内实验方法[J].光学精密工程,2015,23(1):83-92.
[14]GAO Xin,LI Xi-yu,TANG Jia,et al.Ameliorated method of intensity correlation imaging towards high-orbit satellites[J].Acta Optica Sinica,2015,36(6):73-79.高昕,李希宇,唐嘉,等.面向高轨目标的强度相干成像方法改进研究[J].光学学报,2015,36(6):73-79.
[15]李正炜.基于压缩传感理论的单像素相机成像研究[D].中国科学院研究生院(长春光学精密机械与物理研究所),2012.
[16]BROWN R H T R Q.A test of a new type of stellar interferometer on sirius[J].Nature,1956,178(4541):1046-1048.
[17]STREKALOV D V K I Y N.Imaging dark objects with intensity interferometry[J].Optics Express,2014,22(10):12339-12348.
[18]HAN Shen-sheng,GONG Wen-lin,CHEN Ming-liang,et al.Research progress of GISC lidar[J].Infrared and Laser Engineering,2015,44(9):2547-2555.韩申生,龚文林,陈明亮,等.基于稀疏和冗余表象的鬼成像雷达研究进展[J].红外与激光工程,2015,44(9):2547-2555.
[19]SUN M J,EDGAR M P,GIBSON G M,et al.Single-pixel three-dimensional imaging with time-based depth resolution[J].Nature Communications,2016(7):12010.
© 2004-2018 中国地质图书馆版权所有 京ICP备05064691号 京公网安备11010802017129号 地址：北京市海淀区学院路29号 邮编：100083 电话：办公室：(+86 10)66554848；文献借阅、咨询服务、科技查新：66554700 |