RGB合束信标光旋转姿态解耦测量研究  

Decoupling Measurement of Optical Rotational Attitude of RGB Ensemble Beacons

作　　者：杨海马[1,2] 金焱 强佳 刘瑾[3] 李筠[1] 张大伟[1] 黄元申[1] 于涌[5,6] Yang Haima;Jin Yan;Qiang Jia;Liu Jin;Li Jun;Zhang Dawei;Huang Yuanshen;Yu Yong(Cllege of Optolectromie Information and Computer Engineering,Unicerity of Shanghai for Science and Technology,Shanghai 200093,China;Key Laborutory of Spoce Actire 0pto-Electronics Technology,Chinese Academy of Sciences,Shanghai 200083.China;College of Electromie and Electrical Engineering,Shanghai University of Engineering Science,Shanghai 201620,China;Shanghai Institute of Techuical Physics,Chinese Academy of Sciences,Shanghai 200083,China;Shanghai Astronon ical Obserrtory,Chinese Academy of Sciences,Shanghai 200030,China;School of Astrowomy aud Spoace Scieuce,University of Chinese Acondemy of Sciencea,Beijing 100049,China)

机构地区：[1]上海理工大学光电信息与计算机工程学院,上海200093 [2]中国科学院空间主动光电技术重点实验室,上海200083 [3]上海工程技术大学电子电气学院,上海201620 [4]中国科学院上海技术物理研究所,上海200083 [5]中国科学院上海天文台,上海200030 [6]中国科学院大学天文与空间科学学院,北京100049

出　　处：《中国激光》2022年第18期47-55,共9页Chinese Journal of Lasers

基　　金：国家自然科学基金天文联合基金(U1831133);中科院空间主动光电技术重点实验室开放基金(2021ZDKF4);上海航天科技创新基金(SAST2017-062)。

摘　　要：从信标光链路中高效地获取运动平台的姿态信息是运动平台量子光通信成功的关键之一。针对运动平台量子光通信的实际需求,提出一种探测载体平台旋转姿态角的信标姿态解耦方法,有望显著提高量子光通信的动态链接效率。经0°、45°、-45°偏振片起偏调整的RGB三色合束信标光,携带着载体平台的旋转姿态角信息,经自由空间传输后由地面接收系统解耦。接收端利用光电探测器获得信标光的三色光强值,根据三色光强值的差动、比值构造特征参数β,建立信标光旋转角θ与特征参数β间的关联曲线,利用该曲线反演载体平台的空间旋转角信息。分析θ在0°~90°的变化趋势及β的数值结果,并对不同距离下的测量结果进行误差分布分析。实验表明,所反演的信标空间姿态角度测量精度可以达到±0.05°。室内实验结果的3σ值小于0.5°;室外实验结果的3σ值小于1°。综合整体性能分析,所提方法具有测量运动平台空间旋转姿态角的能力,可用于在浮空平台或类似领域中进行姿态角度测量。Objective As an important branch of quantum science,quantum optical communication has gained a lot of attention and investment in scientific research worldwide due to its advantages of high security and good physical confidentiality.In free-space quantum optical communication,the maintenance and detection of the beacon rotation angle between the transmitter and receiver of the beacon light is the key to ensure the success of quantum optical communication in the free-space motion platform.How to obtain the rotation angle of the beacon light transmitter on the moving platform and effectively use the limited optical link to obtain the attitude information of the target is one of the difficult technologies for low-cost mobile quantum optical communication in the future.The existing techniques for measuring the rotation angle of beacon light are limited by a variety of factors such as the large error of the measurement system caused by the construction of hardware equipment and the limited range of angle measurement,and the debugging of parameters in the angle calculation method using adaptive iteration has a large impact on the experimental results.In this paper,by streamlining the optical path design,an optical method of deviation self-compensation is proposed.A combined beacon beam is obtained using red(R),green(G)and blue(B)three-color light carrying different polarization angle information.The concepts of difference and ratio are introduced to construct the parameterβto calculate the three-color light intensity.Finally,theθ-βrelation between the beacon rotation angleθand the characteristic parameterβis established.In this way,we decouple the measurement of the rotational attitude angle of the platform.To some extent,the scheme we propose can reduce the interference error introduced by the environment,expand the application scenario of beacon rotation angle measurement,and achieve the design goal of the system.Methods In this paper,the red,green and blue combined beacon light adjusted by 0°,45°and-45°polar

关 键 词：测量 量子光通信 偏振激光 空间旋转角 三维姿态 光电探测器 

分 类 号：TN29[电子电信—物理电子学]