...
  • 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Communications, China >A single-site positioning method based on TOA and DOA estimation using virtual stations in NLOS environment
【24h】

A single-site positioning method based on TOA and DOA estimation using virtual stations in NLOS environment

机译：NLOS环境下基于虚拟站点的基于TOA和DOA估计的单站点定位方法

获取原文
获取原文并翻译 | 示例
           
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

This paper presents a single-site positioning method based on the joint estimation of propagation time-of-arrival (TOA) and direction-of-arrival (DOA), with the assist of virtual stations in the typical non-line-of-sight (NLOS) environment. Consider the influence of multipath noise on the positioning performance the proposed method firstly presents a modified high-resolution estimation technique called Multipath noise Limiting Matrix Pencil (MLMP) algorithm to achieve the TOA/DOA estimations, in which the matrix pencil and matrix enhancement process are implemented to deal with the measurements from the uniform linear array (ULA) receiver. Meanwhile, the subspace dimension estimation is improved via an adaptive threshold, for enhancing the performance of high-resolution techniques in low signal-noise-ration (SNR) situation. Next the proposed method generates virtual stations utilizing the known floor plan of surrounding reflectors, and adopts a weighted Least Square (WLS) position estimator to calculate the required position, combining the TOA/DOA estimations with the location of virtual stations. Simulations are conducted to evaluate the proposed method under NLOS conditions, and the results show that comparing with the multipath fingerprinting scheme, the proposed method has better performance in various simulation scenarios.
机译：本文提出了一种基于联合到达传播时间（TOA）和到达方向（DOA）估计的单站点定位方法，并在典型的非视线范围内借助虚拟电台（NLOS）环境。考虑到多径噪声对定位性能的影响，该方法首先提出了一种改进的高分辨率估计技术，称为多径噪声限制矩阵笔（MLMP）算法，以实现TOA / DOA估计，其中矩阵笔和矩阵增强过程为用于处理来自统一线性阵列（ULA）接收器的测量。同时，通过自适应阈值改进了子空间维估计，以增强在低信噪比（SNR）情况下高分辨率技术的性能。接下来，所提出的方法利用周围反射器的已知平面图生成虚拟站，并采用加权最小二乘（WLS）位置估计器来计算所需位置，并将TOA / DOA估计与虚拟站的位置相结合。通过仿真对NLOS条件下的方法进行了评估，结果表明，与多径指纹方案相比，该方法在各种仿真场景下具有更好的性能。

著录项

  • 来源
    《Communications, China》 |2019年第2期|146-159|共14页
  • 作者

    Zhang Rui; Xia Weiwei; Yan Feng; Shen Lianfeng;

  • 作者单位

    Southeast Univ, Natl Mobile Commun Res Lab, Nanjing 210096, Jiangsu, Peoples R China;

    Southeast Univ, Natl Mobile Commun Res Lab, Nanjing 210096, Jiangsu, Peoples R China;

    Southeast Univ, Natl Mobile Commun Res Lab, Nanjing 210096, Jiangsu, Peoples R China;

    Southeast Univ, Natl Mobile Commun Res Lab, Nanjing 210096, Jiangsu, Peoples R China;

  • 收录信息
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

    single-site positioning; TOA; DOA; NLOS; virtual station;

    机译：单站定位;TOA;DOA;NLO;虚拟站;

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号