Results 21 to 30 of about 11,569 (270)

OSA Patient Monitoring Based on the Beidou System [PDF]

open access: yesFrontiers in Public Health, 2021
This paper presents an OSA patient interactive monitoring system based on the Beidou system. This system allows OSA patients to get timely rescue when they become sleepy outside. Because the Beidou position marker has an interactive function, it can reduce the anxiety of the patient while waiting for the rescue.
Du Min   +9 more
openaire   +4 more sources

Combined GPS and BeiDou Instantaneous RTK Positioning [PDF]

open access: yesNavigation, 2014
The Chinese BeiDou-2/COMPASS Navigation Satellite System has attained regional operational status and is expected to reach the same level of popularity as GPS once it has reached its full constellation. This contribution considers combined BeiDou+GPS relative code positioning and single- and multiple-frequency real-time kinematic (RTK) positioning.
Dennis Odijk   +3 more
openaire   +2 more sources

Analysis of the Bias on the Beidou GEO Multipath Combinations [PDF]

open access: yesSensors, 2016
The Beidou navigation satellite system is a very important sensor for positioning in the Asia-Pacific region. The Beidou inclined geosynchronous orbit (IGSO) and medium Earth orbit (MEO) satellites have been analysed in some studies previously conducted by other researchers; this paper seeks to gain more insight regarding the geostationary earth orbit (
Yunbin Yuan   +3 more
openaire   +3 more sources

ANALYSIS OF POSITIONING DEVIATION BETWEEN BEIDOU AND GPS BASED ON NATIONAL REFERENCE STATIONS IN CHINA [PDF]

open access: yesThe International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences, 2021
In order to probe into the characteristics of positioning deviation between Beidou Navigation Satellite System (Beidou) and global positioning system (GPS), and investigate possible contribution of Beidou data to refinement of global coordinate system ...
M. Chen, Q. Zhang, Q. Zhang
doaj   +1 more source

Design and implementation of clock synchronization scheme for mine distributed acquisition system

open access: yesGong-kuang zidonghua, 2021
Due to its accuracy and application limitations, single clock synchronization technology can not meet the high-precision and high-reliability clock synchronization accuracy requirements of the mine distributed acquisition system.
AN Sai
doaj   +1 more source

Helmert Variance Component Estimation for Multi-GNSS Relative Positioning [PDF]

open access: yes, 2020
The Multi-constellation Global Navigation Satellite System (Multi-GNSS) has become the standard implementation of high accuracy positioning and navigation applications.
Fang, Zhenlong   +5 more
core   +2 more sources

Novel hypoxia-related gene signature for predicting prognoses that correlate with the tumor immune microenvironment in NSCLC

open access: yesFrontiers in Genetics, 2023
Background: Intratumoral hypoxia is widely associated with the development of malignancy, treatment resistance, and worse prognoses. The global influence of hypoxia-related genes (HRGs) on prognostic significance, tumor microenvironment characteristics ...
Zhaojin Li   +12 more
doaj   +1 more source

A priori knowledge-free fast positioning approach for BeiDou receivers [PDF]

open access: yes, 2022
A Global Navigation Satellite System (GNSS) receiver usually needs a sufficient number of full pseudorange measurements to obtain a position solution. However, it is time-consuming to acquire full pseudorange information from only the satellite broadcast signals due to the navigation data features of GNSS.
arxiv   +1 more source

Cross-talk statistics and impact in interferometric GNSS-R [PDF]

open access: yes, 2016
©2016 IEEE. Personal use of this material is permitted. Permission from IEEE must be obtained for all other uses, in any current or future media, including reprinting/republishing this material for advertising or promotional purposes, creating new ...
Alonso Arroyo, Alberto   +5 more
core   +2 more sources

The New Improved ZHD and Weighted Mean Temperature Models Based on GNSS and Radiosonde Data Using GPT3 and Fourier Function

open access: yesAtmosphere, 2022
Compared to the zenith hydrostatic delay (ZHD) obtained from the Saastamonien model based on in-situ measured meteorological (IMM) data and radiosonde-derived weighted mean temperature (Tm), the ZHD and Tm deviations of the GPT3 model have shown obvious ...
Li Li   +5 more
doaj   +1 more source

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