Results 51 to 60 of about 7,830 (211)

Large-scale and long-distance distributed explosion sound wave test system

Dianzi Jishu Yingyong, 2022
A large-scale and long-distance distributed explosion sound wave test system based on BeiDou satellite navigation system and LoRa wireless communication technology is proposed for the characteristics test of the acoustic signal in the far field of the ...
Wang Maokai, Lai Fuwen, Zhao Yongfeng, Kong Fansheng, Wang Wenlian   +4 more
doaj   +1 more source

The Inevitability of Militarization of Outer Space [PDF]

, 2019
At the end of the second decade of the 21st century, we witness a progressive increase of strategic importance of artificial satellites and other orbital systems, which is a consequence of the ever-accelerating development of space technologies that ...
Bernat, Paweł
core   +1 more source

Operationalizing the Metaverse for Urban Sustainability: Evidence From an Expert Panel and the Seoul Metaverse City Case Study

Sustainable Development, EarlyView.
ABSTRACT Smart cities and urban digital twins have fostered the emergence of immersive environments, such as the metaverse. While contemporary scholarlship has increasingly examined the integration of the metaverse within smart city infrastructures, the critical nexus between urban sustainability and the metaverse remains largely under‐researched. This
Jose Manuel Diaz‐Sarachaga, Ayyoob Sharifi   +1 more
wiley   +1 more source

Overcoming the Challenges of BeiDou Receiver Implementation

Sensors, 2014
Global Navigation Satellite System (GNSS)-based positioning is experiencing rapid changes. The existing GPS and the GLONASS systems are being modernized to better serve the current challenging applications under harsh signal conditions.
Mohammad Zahidul H. Bhuiyan, Stefan Söderholm, Sarang Thombre, Laura Ruotsalainen, Heidi Kuusniemi   +4 more
doaj   +1 more source

Intelligent vehicle safety system based on BeiDou satellite navigation system

IET Intelligent Transport Systems, 2019
With the popularisation of cars, traffic accidents occur every day. To improve driving safety and avoid accidents, an intelligent vehicle safety system based on BeiDou Satellite Navigation System is proposed. The system performs real‐time monitoring of the status of surrounding vehicles. Therefore, potential accidents can be predicted and first aid can
Yun‐Hua Wu, Mo‐Hong Zheng, Wei He, Zhi‐Ming Chen, Bing Hua   +4 more
openaire   +1 more source

Building a Continental‐Scale Geodetic Network: The Plate Boundary Observatory (PBO)

Perspectives of Earth and Space Scientists, Volume 7, Issue 1, December 2026.
Abstract The Plate Boundary Observatory (PBO) transformed the use of geodesy in North America to study crustal deformation and plate boundary processes by establishing a continental‐scale, standardized, open‐access geodetic network. Built and operated by UNAVCO between 2003 and 2018 as part of the National Science Foundation (NSF)‐funded EarthScope ...
Emily E. Zawacki, Michael E. Jackson, Glen S. Mattioli, David J. Mencin, Karl Feaux, Donna J. Charlevoix   +5 more
wiley   +1 more source

BeiDou Inter-Satellite-Type Bias Evaluation and Calibration for Mixed Receiver Attitude Determination

Sensors, 2013
The Chinese BeiDou system (BDS), having different types of satellites, is an important addition to the ever growing system of Global Navigation Satellite Systems (GNSS).
Noor Raziq, Peter J. G. Teunissen, Nandakumaran Nadarajah   +2 more
doaj   +1 more source

STUDY ON THE PERFORMANCE OF BEIDOU HIGH-PRECISION REFERENCE STATION NETWORK IN BEIBU GULF OF GUANGXI [PDF]

The International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences, 2020
Beidou high-precision reference station network in Beibu Gulf of Guangxi consists of five parts, namely Beidou reference stations, the data processing system, the operation and service platform, the data broadcast system and user terminals.
X. Y. Zhong, Y. F. Yang, C. L. Zhou
doaj   +1 more source

A High‐Efficiency Multivariable TEC‐SOFTS Model for Ionospheric TEC Prediction: Validation Over China Area During Low and High Solar Activity Periods

Space Weather, Volume 24, Issue 5, May 2026.
Abstract The ionospheric Total Electron Content (TEC) is a key parameter for characterizing the ionospheric properties. In this study, an efficient multivariable time series prediction model, TEC‐Series Core Fusion and efficient multivariable time series (TEC‐SOFTS), was constructed by combining multiple geomagnetic and solar activity indices ...
Chen Chen, Ling Huang, Wenwen Li, Dezhong Chen, Hongping Zhang, Yidong Lou, Lv Zhou   +6 more
wiley   +1 more source

Relatively Intense Daytime GNSS Amplitude Scintillations at Middle Latitude Linked With Multi‐Layered Strong Es Structures

Geophysical Research Letters, Volume 53, Issue 8, 28 April 2026.
Abstract Intense Global Navigation Satellite System (GNSS) amplitude scintillations usually occur in nighttime at low latitudes due to ionospheric plasma bubble irregularities. During daytime at middle latitudes, previous studies found that the sporadic E (Es) layer could lead to GNSS amplitude scintillations, which however, is relatively weak, for ...
Wenjie Sun, Yuichi Otsuka, Guozhu Li, Zhe Yang, Yuanfa Ji, Wenbin Liang, Renjin Zhang, Xiukuan Zhao, Lianhuan Hu, Biqiang Zhao, Jianfei Liu, Guofeng Dai, Yi Li, Haiyong Xie, Baiqi Ning   +14 more
wiley   +1 more source