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相关概念视频

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

17
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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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...
43
Errors in Global Positioning System01:26

Errors in Global Positioning System

24
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,...
24
Field Application of Global Positioning System01:28

Field Application of Global Positioning System

22
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...
22
Introduction to Global Positioning System01:30

Introduction to Global Positioning System

38
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,...
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Automated Deployment of an Internet Protocol Telephony Service on Unmanned Aerial Vehicles Using Network Functions Virtualization
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一个独立的无人机移动基站.

Sung-Chan Choi1,2, Sung-Yeon Kim3

  • 1School of Electrical and Electronic Engineering, Yonsei University, Seoul 03722, Republic of Korea.

Sensors (Basel, Switzerland)
|March 17, 2025
PubMed
概括
此摘要是机器生成的。

使用公共安全LTE (PS-LTE) 的无人机移动基站可在灾难后快速恢复通信. 该系统确保了紧急服务的可靠,安全的通信,并在现实世界测试中证明了其有效性.

关键词:
这是IOPS的IOPS.在PS-LTE中使用.无人机无人机无人机是什么?实施实施实施实施实施.移动基站是移动基站.一个原型,一个原型.

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科学领域:

  • 工程 工程师 工程师 工程师
  • 电信 电信服务 电信服务 电信服务
  • 灾害管理 灾害管理

背景情况:

  • 像地震和野火这样的灾难事件经常破坏重要的通信基础设施.
  • 快速恢复通信对于有效应对紧急情况和公共安全至关重要.

研究的目的:

  • 提出和评估基于无人机 (UAV) 的移动基站,用于灾区的独立通信.
  • 使用公共安全LTE (PS-LTE) 确保紧急服务的可靠和安全通信.

主要方法:

  • 开发了一个基于无人机的移动基站原型,具有PS-LTE功能.
  • 进行模拟以确定最佳的无线电覆盖范围和设备放置.
  • 进行户外实验,测试原型的运行性能和数据速率.

主要成果:

  • 模拟确定了适合移动基站无线电覆盖的位置.
  • 实验结果表明,数据速率足以实现独立的基站运行.
  • 该原型在户外测试环境中成功提供了独立的通信功能.

结论:

  • 基于无人机的PS-LTE移动基站是灾后恢复通信基础设施的可行解决方案.
  • 这项技术为紧急通讯提供了一种灵活而高效的方法.
  • 这种原型代表了通信系统在抗灾能力方面的重大进步.