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相关概念视频

Introduction to Global Positioning System01:30

Introduction to Global Positioning System

827
The Global Positioning System (GPS) revolutionized positioning on Earth, providing precise location data through satellite ranging. The GPS system was developed in 1978 by the U.S. Department of Defense  for military use, and it became available for civilian applications in 1983, transforming fields including navigation, fleet management, and time synchronization for telecommunications systems.GPS consists of satellites in medium Earth orbit, about 20,200 kilometers above the surface,...
827
Errors in Global Positioning System01:26

Errors in Global Positioning System

463
Global Positioning System (GPS) technology has revolutionized navigation and positioning, but its accuracy is often compromised by various errors. These errors, stemming from environmental, satellite, and receiver-related factors, require careful mitigation to ensure reliable performance across applications.Atmospheric ErrorsGPS signals travel through the Earth’s ionosphere and troposphere, introducing delays which affect accuracy. The ionosphere is strongly influenced by charged particles,...
463
Field Application of Global Positioning System01:28

Field Application of Global Positioning System

401
The Global Positioning System (GPS) has become an indispensable tool in fieldwork, offering unparalleled precision and efficiency for surveying, navigation, and infrastructure development. By harnessing signals from a constellation of satellites, GPS receivers determine the location of objects with remarkable speed and accuracy, often completing calculations within a second.Advantages of Modern GPS TechnologyContemporary GPS receivers are designed to meet the practical demands of field...
401
Types of Global Positioning System Surveys01:30

Types of Global Positioning System Surveys

506
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...
506
Design Example: Identifying the Locations of Monuments in the Field Using Global Positioning System Device01:30

Design Example: Identifying the Locations of Monuments in the Field Using Global Positioning System Device

455
Surveyors use Global Positioning System (GPS) technology to measure the precise location and elevation of points on Earth. In a recent survey, GPS receivers were used to determine the coordinates and elevations of two park monuments. The process involved careful mission planning, data collection, and correction to ensure accuracy. The survey began with mission planning to identify optimal satellite visibility and minimize Position Dilution of Precision (PDOP). A geodetic control point...
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相关实验视频

Updated: May 6, 2026

Microfluidic Platform with Multiplexed Electronic Detection for Spatial Tracking of Particles
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增强室内定位使用RSSI和时间分布式自动编码器隔离的反复单元模型.

Zhe Wei1, Zhanpeng Zhou1, Shuyan Yu2

  • 1School of Computer Science, Civil Aviation Flight University of China, Guanghan 618307, China.

Sensors (Basel, Switzerland)
|August 10, 2024
PubMed
概括

这项研究引入了一种使用射频识别 (RFID) 和收到信号强度指示 (RSSI) 的新室内定位系统. 这种新的方法显著提高了现实世界的应用程序的准确性和速度.

关键词:
在这里,我们可以看到RFID RFID RFID.深度学习是一种深度学习.室内定位装置 室内定位装置接收到的信号强度的信号强度.

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相关实验视频

Last Updated: May 6, 2026

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科学领域:

  • 计算机科学 计算机科学
  • 电气工程 电气工程
  • 机器人技术 机器人技术 机器人技术

背景情况:

  • 室内定位系统 (IPS) 在准确性和速度方面面临着挑战.
  • 现有的方法经常与来自无线电频率识别 (RFID) 技术的噪音响应信号强度指示 (RSSI) 数据扎.
  • 在RSSI数据中的时间动态对于精确的定位至关重要,但通常被不充分捕获.

研究的目的:

  • 开发一个使用RFID-RSSI的增强室内定位系统.
  • 为了提高当前室内定位方法的准确性和减少定位时间.
  • 有效预处理杂的RSSI数据并建模其时间特征.

主要方法:

  • 利用高斯卡尔曼过来进行强大的RSSI信号预处理.
  • 实现了一个时间分布式自动编码器关闭的反复单元 (TAE-GRU) 模型用于位置预测.
  • 集成的信号预处理与先进的深度学习用于时间数据分析.

主要成果:

  • 与简单的神经网络方法相比,在本地化准确度方面取得了75.9%的改善.
  • 在本地化速度方面表现出显著的增强.
  • 验证了拟议方法在现实室内环境中的实际适用性.

结论:

  • 拟议的基于RFID的室内定位系统提供了卓越的准确性和速度.
  • 高斯卡尔曼过和TAE-GRU有效地解决RSSI数据噪声和时间依赖.
  • 该方法为实际和高效的室内本地化挑战提供了可行的解决方案.