哈特曼技术在序列光斑检测中的应用

母一宁; 刘泉; 于林韬; 李平

doi:10.3788/OPE.20111909.2197

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哈特曼技术在序列光斑检测中的应用

信息科学 | 更新时间：2020-08-12

- 哈特曼技术在序列光斑检测中的应用
- Application of Hartmann technique in sequence spot detection
- 光学精密工程 2011年19卷第9期页码：2197-2204
- 作者机构：
  
  长春理工大学,吉林长春,130022
- 作者简介：
- 基金信息：
  
  国家863高技术研究发展计划资助项目(No.2003AA712014)()
- DOI：10.3788/OPE.20111909.2197
  中图分类号： TN929.1
- 收稿日期：2010-12-10，
  
  修回日期：2011-02-15，
  
  网络出版日期：2011-09-26，
  
  纸质出版日期：2011-09-26
- 稿件说明：
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母一宁, 刘泉, 于林韬, 李平. 哈特曼技术在序列光斑检测中的应用[J]. 光学精密工程, 2011,19(9): 2197-2204

MU Yi-ning, LIU Quan, YU Lin-tao, LI Ping. Application of Hartmann technique in sequence spot detection[J]. Editorial Office of Optics and Precision Engineering, 2011,19(9): 2197-2204
母一宁, 刘泉, 于林韬, 李平. 哈特曼技术在序列光斑检测中的应用[J]. 光学精密工程, 2011,19(9): 2197-2204 DOI： 10.3788/OPE.20111909.2197.

MU Yi-ning, LIU Quan, YU Lin-tao, LI Ping. Application of Hartmann technique in sequence spot detection[J]. Editorial Office of Optics and Precision Engineering, 2011,19(9): 2197-2204 DOI： 10.3788/OPE.20111909.2197.

摘要

为了提高水平链路大气无线激光通信中的对准精度

降低强湍流对激光通信的影响

对系统结构进行了改进并研究了光斑检测对准算法。首先

根据哈特曼-夏克传感器对波前畸变局部的实时探测结果

计算局部畸变的变化量

从而实时确定局部截止频率-局部判决阈值

。接着

采用统计序列均方误差获取序列采样信息

(

)

并根据局部阈值判决确定信标序列采样空间(

)。最后

遵循最小二乘原则进行圆心拟合

使序列均方误差达到最小

并从信息论的角度出发

分析了基于序列信息圆心拟合光斑检测法的优缺点。实验结果表明

在湍流中该方法的检测精度优于4 rad

比传统质心算法的检测精度高1倍

满足了大气无线激光对准的基本要求

较好地回避了湍流引入噪声过大这一难题。

Abstract

The structure of the system is aimed at improving the spot detection algorithm

in order to improve the level of an atmospheric wireless laser communication link alignment accuracy by reducing the impact of turbulence on laser communication. First

we calculate the changes in the local distortion to determine the real-time local decision threshold

by a Hartmann-Shack wave-front sensor on the local distortion of the results of real-time detection. We then obtain the sequence of Mean Square Error(MSE) from the sampling information

(

) by a statistical series. At the same time

we can determine the sampling space (

)of the beacon based on the local threshold. Second

we use the center of a circle for fitting to make the MSE a minimum by following the method of least squares. We also analyse the advantages and disadvantages of the method with center-fitting of spot detection based on the sequence information

from the perspective of information theory. The results show that the detection accuracy is better than 4 rad in the turbulence and more than twice the traditional centroid algorithm. The method avoids a problem with the introduction of strong turbulence noise. It basically meet the requirements of Air-Wireless-Laser alignment.

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references

姜会林,佟首峰.空间激光通信技术与系统[M]. 北京:国防工业出版社,2011. JIANG H L,TONG SH F.The System and Technology of the Free Space Laser Communications[M]. Beijing:National Defense Industry Press, 2011.(in Chinese)[2] 李晓峰. 星地激光通信链路原理与技术[M]. 北京:国防工业出版社,2007. LI X F.The Principle and Technology of the Satellite-to-ground Laser Communication Links [M].Beijing:National Defense Industry Press, 2007.(in Chinese)[3] 高宠,谭立英,马晶,等. 空间光通信的到达角起伏实验研究[J]. 强激光与粒子束,2007,19(2):177-181. GAO CH,TAN L Y,MA J,et al..Experimental research of angle of arrival fluctuations in free space optical communications[J].High Power and Particle Beams,2007,19(2):177-181.(in Chinese)[4] 高宠,谭立英,马晶,等. 光束在强湍流区中传播的到达角起伏[J]. 强激光与粒子束,2006,18(6):981-894. GAO CH,TAN L Y,MA J.Angle of arrival fluctuation in moderate to strong turbulence[J]. High Power and Particle Beams,2006,18(6):981-894. (in Chinese)[5] 李新阳,姜文汉. 哈特曼-夏克传感器的泽尼克模式波前复原误差[J]. 光学学报,2002,22(10):1236-1240. LI X Y,JIANG W H.Zernike modal wavefront reconstruction error of Hartmann Shack wavefront sensor[J].Acta Optica Sinica,2002,22(10):1236-1240. (in Chinese)[6] 杨耀权,施仁,于希宁. 用Hough变换提高激光光斑中心定位精度的算法[J]. 光学学报, 1999, 19(12):1655-1660. YANG Y Q,SHI R,YU X N. An algorithm to raise the locating precision of laser spot center based on Hough transform[J].Acta Optica Sinica, 1999,19(12):1655-1660. (in Chinese)[7] 王丽黎, 柯熙政, 陈丽,等. 新基于大气激光通信系统的实验测量研究[J]. 光散射学报,2006,17(4)378-383. WANG L L,KE X ZH,CHEN L X,et al.. The testing system for optical power through atmosphere[J]. Chinese Journal of Light Scattering,2006,17(4):378-383. (in Chinese)[8] 赵馨,佟首峰,刘云清,等. 基于四象限探测器的光斑检测跟踪技术[J]. 中国激光, 2010,37(7):1756-1561. ZHAO X,TONG SH F,LIU Y Q,et al.. Technology on spot detection and tracking based on four-quadrant detector[J]. Chinese Journal of Lasers,2010,37(7):1756-1561. (in Chinese)[9] 王亚丽,段锦. 空间光通信中激光光斑检测与特征分析[J]. 红外与激光工程,2007,36(7):166-170. WANG Y L, DUAN J.Laser spot detection and characteristic analysis in space optical communication[J].Infrared and Laser Engineering,2007,36(7):166-170. (in Chinese)[10] THOMAS W,VORONTSOV M A.Adaptive compensation of atmospheric effects with a high-resolution micro-machined deformable mirror[J]. SPIE,2002,4825:14-23.

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