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相关概念视频

Errors in Global Positioning System01:26

Errors in Global Positioning System

317
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,...
317
Types of Global Positioning System Surveys01:30

Types of Global Positioning System Surveys

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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...
330
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

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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...
374
Field Application of Global Positioning System01:28

Field Application of Global Positioning System

296
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...
296

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相关实验视频

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对于地下矿井WSN的高精度代定位算法,具有动态路径损失优化和RSSI集群.

Bin Wu1

  • 1Information Engineering School, Chengyi College, Jimei University, Xiamen, China. binwu@stu.xmu.edu.cn.

Scientific reports
|November 20, 2025
PubMed
概括
此摘要是机器生成的。

本研究介绍了地下矿山中无线传感器网络 (WSN) 的改进本地化算法. 它通过优化接收信号强度指标 (RSSI) 数据来提高准确性,提高安全性和效率.

关键词:
动态路径损失优化优化代加权的中心体.雷地定位 雷地定位 雷地定位在RSSI集群中.无线传感器网络 (WSN) 是指无线传感器网络.

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科学领域:

  • 工程 工程师 工程师 工程师
  • 计算机科学 计算机科学
  • 地质地质地质地质地质地

背景情况:

  • 无线传感器网络 (WSNs) 在复杂的地下煤矿中面临着局部化挑战,原因是信号波动和节点移动性.
  • 现有的本地化算法在动态和封闭的地下环境中难以准确.

研究的目的:

  • 开发一个强大而准确的局部化算法,用于WSNs在地下煤矿道.
  • 为了解决当前处理信号变化和节点移动的方法的局限性.

主要方法:

  • 提出了一种使用收到信号强度指标 (RSSI) 集群的代加权中心点位定位算法.
  • 优化了RSSI数据,使用K-means集群来动态确定路径丢失参数.
  • 集成了一种改进的代加权中心体算法,用于高精度定位.

主要成果:

  • 拟议的算法与现有的高性能本地化算法相比,表现出更高的性能.
  • 在各种场景中实现了改进的本地化稳定性,包括节点通信半径,信标节点比率和道宽度的变化.
  • 通过复杂的地下矿井道模拟中的实验数据进行验证.

结论:

  • 开发的算法为WSN在具有挑战性的地下环境中提供了增强的本地化准确性和稳定性.
  • 提供了一个有价值的理论参考,用于在狭窄的,长长的空间,如矿山道三维定位.
  • 通过精确定位,有助于提高地下采矿的安全性和运营效率.