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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

172
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...
172
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...
124
Selected Data About Geographic Locations01:25

Selected Data About Geographic Locations

71
Geographic Information Systems (GIS) rely on two core types of data: spatial data and attribute data.Spatial DataSpatial data defines the physical location of features within a coordinate system, typically expressed in terms of latitude and longitude. It provides precise positioning for elements like roads, rivers, or buildings.Attribute DataAttribute data complements spatial data by adding descriptive information about these features. For example, a road's spatial data includes its start and...
71
Field Application of Global Positioning System01:28

Field Application of Global Positioning System

95
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...
95
Levels of Use of a GIS01:29

Levels of Use of a GIS

109
Geographic Information Systems (GIS) operate across three levels of application, each representing an increasing degree of complexity: data management, analysis, and prediction. These levels reflect the expanding functionality and versatility of GIS technology in handling spatial data for diverse purposes.Data ManagementAt its foundational level, GIS serves as a tool for data management, enabling the input, storage, retrieval, and organization of spatial data. This level is often employed in...
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Introduction to Global Positioning System01:30

Introduction to Global Positioning System

146
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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Methodology for Establishing a Community-Wide Life Laboratory for Capturing Unobtrusive and Continuous Remote Activity and Health Data
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美国城市的游客丰富人口普查使用大规模的移动定位数据.

Meicheng Xiong1, Di Zhu2,3, David Van Riper4

  • 1Department of Geography, Environment and Society, University of Minnesota, Twin Cities, Minneapolis, USA.

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|July 2, 2025
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概括
此摘要是机器生成的。

这项研究引入了使用移动数据来丰富传统人口普查信息的"访客普查". 它结合了人类运动模式,以提供对社会人口统计学更具动态性的理解.

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科学领域:

  • 社会和人口统计学.
  • 人类流动性 人类流动性
  • 数据科学数据科学数据科学

背景情况:

  • 传统的人口普查数据提供了有价值的社会人口统计见解,但往往将单位视为静态.
  • 现有的数据产品忽视了人口普查单位内个人的互动和流动.

研究的目的:

  • 为了介绍一本小说.
  • 游客人口普查 游客人口普查
  • 通过整合来自移动定位数据的人类访问数据集.
  • 根据观察到的流动性,以动态的社会人口统计信息来丰富传统的人口普查数据.
  • 通过使用数字痕迹,弥合综合人口普查数据和个人层面分析之间的差距.

主要方法:

  • 2021年7月,美国七个大都市地区的358万匿名手机用户的潜在家庭位置的识别和验证.
  • 通过使用来自移动定位数据的家庭检测结果来丰富访问地点的社会人口统计资料.
  • 开发一个适应性数据生成框架,以在多个尺度上整合各种社会人口特征.

主要成果:

  • 一个语义上丰富的语义.
  • 游客人口普查 游客人口普查
  • 数据集包括人类访问和空间互动.
  • 通过移动数据来丰富基于地点的社会人口统计资料的演示.
  • 验证一个整合传统人口普查和手机数据的框架.

结论:

  • 这是一个很棒的节目,这是一个很棒的节目.
  • 游客人口普查 游客人口普查
  • 通过将数字痕迹的流动性和空间相互作用纳入,增强了传统的基于居民的人口普查知识.
  • 这种方法弥合了聚合分析和个人分析之间的差距.
  • 该框架支持在不同的空间和时间尺度上未来整合多样化的社会人口特征.