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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

101
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...
101
Types of Global Positioning System Surveys01:30

Types of Global Positioning System Surveys

83
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...
83
Field Application of Global Positioning System01:28

Field Application of Global Positioning System

70
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...
70

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相关实验视频

Updated: Jul 24, 2025

Simulating Imaging of Large Scale Radio Arrays on the Lunar Surface
06:14

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调度 稀少的LEO卫星传输用于远程水位监测.

Garrett Kinman1, Željko Žilić2, David Purnell2,3

  • 1Octasic Inc., 2901 Rachel, Montréal, QC H1W 4A4, Canada.

Sensors (Basel, Switzerland)
|July 8, 2023
PubMed
概括

本研究介绍了低地球轨道 (LEO) 卫星的基于学习的传输调度方法,优化了远程水位监测的能源使用. 这种方法显著降低了能源消耗,使物联网应用在未经服务的地区成为可能.

关键词:
远程物联网的互联网远程物联网.稀少的LEO卫星传输频道水平监测水位的监测.

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相关实验视频

Last Updated: Jul 24, 2025

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科学领域:

  • 地球和太空科学 地球和太空科学
  • 计算机科学 计算机科学
  • 环境科学 环境科学

背景情况:

  • 远程监测水位对于环境管理至关重要.
  • 低地球轨道 (LEO) 卫星星座为远程地区的数据传输提供了潜力.
  • 零星卫星连接需要优化传输计划以节省能源.

研究的目的:

  • 开发一个能源效率高的传输调度方案,用于LEO卫星通信.
  • 通过使用LEO卫星,使偏远地区的水位能够长期监测.
  • 为各种LEO传输场景创建适应性和廉价的调度解决方案.

主要方法:

  • 开发了一种结合蒙特卡洛和修改的 k-armed bandit 方法的在线学习方法.
  • 该计划侧重于在卫星飞越期间安排传感器传输时间.
  • 该方法在三个常见的遥感场景中进行了测试和演示.

主要成果:

  • 开发的方案实现了20倍减少输电能源消耗.
  • 学习方法表明了适应不同监测场景的适应性.
  • 该方法为LEO卫星传输调度提供了具有成本效益的解决方案.

结论:

  • 拟议的能源优化方案对基于LEO卫星的远程监控是有效的.
  • 这种方法有助于在缺乏无线覆盖的地区实现物联网应用.
  • 该研究提供了一个可扩展的解决方案,用于优化稀疏的卫星网络中的数据传输.