基于散射自由程随机重采样的光量子定位方法  

Optical quantum positioning method based on random resampling of scattering free path

作　　者：周牧 张靖 王勇 杨小龙[1,2] 李玲霞 ZHOU Mu;ZHANG Jing;WANG Yong;YANG Xiaolong;LI Lingxia(School of Communication and Information Engineering,Chongqing University of Posts and Telecommunications,Chongqing 400065,China;Engineering Research Center of Mobile Communications,Ministry of Education,Chongqing 400065,China)

机构地区：[1]重庆邮电大学通信与信息工程学院,重庆400065 [2]移动通信教育部工程研究中心,重庆400065

出　　处：《通信学报》2023年第3期55-65,共11页Journal on Communications

基　　金：国家自然科学基金资助项目(No.62101085);重庆市自然科学基金资助项目(No.CSTB2022NSCQ-MSX0895);重庆市教委科学技术研究基金资助项目(No.KJZD-K202000605);重庆市技术创新与应用发展专项基金资助项目(No.S2022-02N);重庆市研究生科研创新基金资助项目(No.CYS21295);重邮信通青创团队支持计划基金资助项目(No.SCIE-QN-2022-06)。

摘　　要：为了解决量子信号受散射环境干扰,导致定位误差波动大且定位稳健性差的问题,提出了一种基于散射自由程随机重采样的光量子定位方法。基于蒙特卡罗思想建立散射模型,结合环境信息和符合计数结果构建散射自由程矩阵。对散射自由程序列进行重采样,计算不同光源各时间分组下相对距离误差,以此动态选择光源,并实现对目标物体的位置估计。实验结果表明,所提方法定位误差为厘米级,且定位误差在0.12 m内的置信概率达90.57%。To solve the problem that the quantum signal was disturbed by the scattering environment,which lead to large fluctuation of the positioning error and poor positioning robustness,an optical quantum positioning method based on random resampling of the scattering free path was proposed.The scattering model was established based on the Monte Carlo theory,and the scattering free path matrix was constructed by combining the environment information and coincidence counting results.The scattering free program was resampled,and the relative distance error of different light sources in different time groups was calculated.Based on that,the light sources were dynamically selected,and the position of the target object was estimated.Experimental results show that the positioning error of the proposed method can achieve the centimeter level,and the confidence probability of the positioning error within 0.12 m is 90.57%.

关 键 词：量子定位 散射自由程 符合计数 随机重采样 光源选择 

分 类 号：TN929.1[电子电信—通信与信息系统]