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相关概念视频

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GPS surveying methods vary in application, accuracy, and data collection techniques, catering to diverse surveying and mapping needs. Static GPS, kinematic GPS, and real-time kinematic (RTK) surveying are widely used. Each technique offers distinct advantages.Static GPS involves placing one receiver at a known reference point and another at the target point. It collects exact positional data by observing multiple satellite ranges over an extended period, achieving centimeter-level accuracy for...
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Tapes are essential in surveying for accurate, durable, and short-distance measurements. Made from lightweight, nylon-coated steel, they offer flexibility and strength for rugged outdoor use. The nylon coating protects against rust and wear, extending the tape's life. Standard lengths, around 30 meters, are marked in meters and millimeters for precision.Surveyors select tapes based on site conditions and accuracy needs. Lightweight, nylon-coated tapes are commonly used for ease of handling and...
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Updated: Jul 24, 2025

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宽带TDoA定位利用基于RSS的集群

Andreas Fuchs1,2, Lukas Wielandner1,2, Daniel Neunteufel2,3

  • 1Signal Processing and Speech Communication Laboratory, Graz University of Technology, 8010 Graz, Austria.

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概括
此摘要是机器生成的。

这项研究引入了一种新的方法,用于改善密集多路径 (DM) 环境中的无线电定位精度. 通过集群设备和融合宽带 (WB) 和接收信号强度 (RSS) 测量,它可以显著减少定位错误.

关键词:
在AoAAAAAAAAAAAAAAAAAAAAAACRLB CRLB是指CRLB是指CRLB是指CRLB.物联网的物联网,就是物联网.这就是为什么RSS是RSS.为了AAA.室内定位装置 室内定位装置融合传感器 融合传感器 融合传感器宽带宽带是什么意思

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科学领域:

  • 无线通信是一种无线通信.
  • 定位和定位系统的定位和定位系统.
  • 信号处理 信号处理

背景情况:

  • 密集的多路径 (DM) 频道显著降低基于无线电的定位准确性.
  • DM干扰会影响飞行时间 (ToF) 和接收信号强度 (RSS) 的测量.
  • 现有的方法在DM丰富的环境中难以准确.

研究的目的:

  • 提出一种结合宽带 (WB) 和RSS测量的强有力的位置估计方法.
  • 在密集多路径 (DM) 通道中提高定位准确性.
  • 为密集间隔的设备开发联合处理方法.

主要方法:

  • 使用RSS测量来形成设备集群.
  • 在集群中共同处理WB测量以抑制DM的影响.
  • 制定了信息融合的算法方法,并推导出克拉梅尔-拉奥下限 (CRLB).

主要成果:

  • 拟议的集群方法有效地抑制了DM干扰.
  • 合并WB和RSS测量导致了强大的位置估计.
  • 模拟和现实世界数据验证了该方法,显示了显著的错误减少.

结论:

  • 开发的集群和数据融合技术显著提高了DM通道的定位精度.
  • 该方法将根平均平方误差 (RMSE) 从大约2m减半到1m以下.
  • 这种方法为在具有挑战性的无线电环境中准确定位提供了实际解决方案.