使用智能手机和低成本接收器在最佳和次优条件下收集的原始GNSS数据
Julián Tomaštík1, Matej Varga2, Tim Everett3
1Faculty of Forestry, Technical University in Zvolen, T.G. Masaryka 24, Zvolen 96001, Slovakia.
Data in brief
|February 22, 2024
概括
智能手机中的低成本全球导航卫星系统 (GNSS) 接收器提供了新的可能性. 这项研究评估了智能手机GNSS性能与独立接收器相比,考虑了环境因素.
科学领域:
- 地理学工程 工程地质学
- 卫星导航系统 卫星导航系统
- 移动设备技术 移动设备技术
背景情况:
- 全球导航卫星系统 (GNSS) 接收器变得越来越小,越来越便宜.
- 安卓设备现在提供原始GNSS测量,扩大了超出高成本接收器的可访问性.
- 这种进步为以前由硬件成本所限制的各种应用程序开辟了新的可能性.
研究的目的:
- 评估智能手机接收器GNSS测量的性能和可重复性.
- 为了比较智能手机GNSS功能与独立的低成本接收器.
- 评估环境条件 (如树冠) 对GNSS信号接收的影响.
主要方法:
- 使用Xiaomi Mi 8智能手机收集数据,有或没有地面平面.
- 将Google Pixel 5智能手机接收器与u-Blox ZED F9P独立接收器进行了比较.
- 在不同的条件下进行多次测量,包括阻碍GNSS信号接收.
主要成果:
- 智能手机GNSS接收器提供原始测量,与一些独立设备相比.
- 性能受到设备类型,外部因素 (如地面平面和信号阻塞) 的影响.
- 在不同的环境场景下,在多个会议中评估了可重复性.
结论:
- 智能手机GNSS接收器适用于需要原始测量的应用,特别是考虑到成本.
- 了解环境影响对于优化移动设备的GNSS精度至关重要.
- 进一步的研究可以利用这些发现来改进移动定位解决方案.
相关概念视频
01:28Field Application of Global Positioning System
45
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...
45
01:30Types of Global Positioning System Surveys
58
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...
58
01:30Design Example: Identifying the Locations of Monuments in the Field Using Global Positioning System Device
33
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...
33
01:26Errors in Global Positioning System
45
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,...
45
01:30Introduction to Global Positioning System
60
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,...
60
01:17Common Leveling Mistakes and Errors
72
A survey team is tasked with determining the elevation difference between points Point A and Point B, separated by uneven terrain. They use a leveling instrument and a leveling rod.Common MistakesMisreading the Rod: During a backsight reading at Point A, the instrumentman observes the rod partially obscured by tall grass. Instead of reading 1.135 m, they mistakenly record 1.735 m due to the misalignment of the crosshair with the wrong graduation. This error adds 0.600 m to all subsequent...
72