Results 51 to 60 of about 228,586 (380)

GNSScope and the split chip compression technique [PDF]

, 2009
The presence of multipath due to obstructions on the signal path coupled with transmitter and channel based perturbations, can significantly degrade the quality of the received satellite navigation signals, resulting in the non-detection of weaker ...
Cetin, E., Cetin, E., Kale, I., Kale, I., Kazazoglu, R., Kazazoglu, R.   +5 more
core   +1 more source

A Minimal Solution Estimating the Position of Cameras with Unknown Focal Length with IMU Assistance

Drones
Drones are typically built with integrated cameras and inertial measurement units (IMUs). It is crucial to achieve drone attitude control through relative pose estimation using cameras. IMU drift can be ignored over short periods.
Kang Yan, Zhenbao Yu, Chengfang Song, Hongping Zhang, Dezhong Chen   +4 more
doaj   +1 more source

Comprehensive assessment of real-time precise products from IGS analysis centers

Satellite Navigation, 2022
Real-Time Precise Point Positioning (RT-PPP) has been one of the research hotspots in GNSS (Global Navigation Satellite System) community for decades. Real-time precise products of satellite orbits and clocks are the prerequisite for RT-PPP.
Bofeng Li, Haibo Ge, Yuhang Bu, Yanning Zheng, Leitong Yuan   +4 more
doaj   +1 more source

Analysis of the Dihedral Corner Reflector’s RCS Features in Multi-Resource SAR

Applied Sciences
Artificial corner reflectors are widely used in the vegetated landslide for time series InSAR monitoring due to their permanent scattering features. This paper investigated the RCS features of a novel dihedral CR under multi-resource SAR datasets. An RCS
Jie Liu, Tao Li, Sijie Ma, Yangmao Wen, Yanhao Xu, Guigen Nie   +5 more
doaj   +1 more source

GLONASS – Competing Global Satellite Navigation System

Московский журнал международного права, 2007
The article is devoted to the international legal problems of introduction into international and national practice of the satellite systems of remote control of air navigation (the US GPS, Russian GLONASS, and European Galileo) in the context of ...
Sh. A. Abdurahmanova
doaj   +1 more source

GPS and property surveying [PDF]

, 2015
In 2010 the Global Positioning System (GPS) developed by the United States military was the best known Global Navigation Satellite System (GNSS). Others included Russia’s GLONASS, China’s COMPASS and Europe’s GALILEO systems.
Drummond, J.
core  

A Review of Global Navigation Satellite System (GNSS)-Based Dynamic Monitoring Technologies for Structural Health Monitoring

Remote Sensing, 2019
In the past few decades, global navigation satellite system (GNSS) technology has been widely used in structural health monitoring (SHM), and the monitoring mode has evolved from long-term deformation monitoring to dynamic monitoring. This paper gives an
Nan Shen, Liang Chen, Jingbin Liu, Lei Wang, T. Tao, Dewen Wu, Ruizhi Chen   +6 more
semanticscholar   +1 more source

Determination of the Stability of High-Steep Slopes by Global Navigation Satellite System (GNSS) Real-Time Monitoring in Long Wall Mining

Applied Sciences, 2020
Surface movement and deformation induced by underground coal mining causes slopes to collapse. Global Navigation Satellite System (GNSS) real-time monitoring can provide early warnings and prevent disasters.
Lian Xugang, Zoujun Li, Hong-yan Yuan, Hung Haifeng, Cai Yinfei, Xiao-yu Liu   +5 more
semanticscholar   +1 more source

Cumulative Social Disadvantage and Disease Activity in Juvenile Idiopathic Arthritis: A Childhood Arthritis and Rheumatology Research Alliance Registry Study

Arthritis Care &Research, Accepted Article.
Background Social determinants of health (SDOH) contribute to JIA disparities, but most studies have assessed SDOH independently rather than cumulatively across individual, family, and neighborhood levels. Using a socioecological framework, we investigated the relationship between cumulative social disadvantage, neighborhood disadvantage, and JIA ...
William Daniel Soulsby, John Boscardin, Andrea Knight, Daniel B. Horton, Karine Toupin‐April, Emily von Scheven, The CARRA Registry Investigators and for the CARRA Health Equity Work Group   +6 more
wiley   +1 more source

Globally Optimal Relative Pose and Scale Estimation from Only Image Correspondences with Known Vertical Direction

ISPRS International Journal of Geo-Information
Installing multi-camera systems and inertial measurement units (IMUs) in self-driving cars, micro aerial vehicles, and robots is becoming increasingly common.
Zhenbao Yu, Shirong Ye, Changwei Liu, Ronghe Jin, Pengfei Xia, Kang Yan   +5 more
doaj   +1 more source