Results 31 to 40 of about 107,355,091 (276)

A Comprehensive Signal Quality Assessment for BDS/Galileo/GPS Satellites and Signals

open access: yesRemote Sensing
With the modernization of global navigation satellite systems (GNSS), especially the rapid development of the BeiDou Navigation Satellite System (BDS), more observations of satellites and signals have become available.
Yijun Tian   +10 more
doaj   +2 more sources

Precise Orbit Determination of BDS-2 and BDS-3 Using SLR

open access: yesRemote Sensing, 2019
The BeiDou Navigation Satellite System (BDS) of China is currently in the hybrid-use period of BDS-2 and BDS-3 satellites. All of them are equipped with Laser Retroreflect Arrays (LRAs) for Satellite Laser Ranging (SLR), which can directly obtain an ...
Honglei Yang   +4 more
doaj   +2 more sources

Evaluating the accuracy of earth rotation parameters based on the BDS observations

open access: yesGeodesy and Geodynamics
The BeiDou satellite system (BDS) has progressed with the full operationalization of the second-generation regional system (BDS-2) and the third-generation global system (BDS-3).
Chenxiang Wang   +5 more
doaj   +2 more sources

Integrated enhancement of BDS-3 precise orbit determination and PPP using multiple CENTISPACE™ LEO satellites

open access: yesSatellite Navigation
Low Earth Orbit (LEO) navigation augmentation is widely recognized as a key development for next-generation Global Navigation Satellite System (GNSS), and its performance must be validated using real observations. This paper investigates the contribution
Hanlin Chen   +7 more
doaj   +2 more sources

Temporal bone fracture presenting as isolated facial nerve paralysis mimicking Bell’s palsy: A case report

open access: yesAdvances in Oral and Maxillofacial Surgery, 2022
Facial nerve paralysis can be caused by temporal bone fractures. We present a case of a teenager presenting with a displaced fracture of the left zygomatic complex and left mandibular parasymphysis.
Nazish Ashfaq Khan   +2 more
doaj   +1 more source

Characteristics of receiver-related biases between BDS-3 and BDS-2 for five frequencies including inter-system biases, differential code biases, and differential phase biases [PDF]

open access: yes, 2021
It is foreseeable that the BeiDou navigation satellite system with global coverage (BDS-3) and the BeiDou navigation satellite (regional) system (BDS-2) will coexist in the next decade.
C. Sheng (3982526)   +3 more
core   +2 more sources

The Initial Performance Evaluation of Mixed Multi-Frequency Undifferenced and Uncombined BDS-2/3 Precise Point Positioning under Urban Environmental Conditions

open access: yesRemote Sensing, 2022
With the full operation of the global BeiDou navigation satellite system (BDS-3), positioning performance can be further enhanced by BDS-3 combined with the regional BeiDou navigation satellite system (BDS-2).
Fuxin Yang   +5 more
doaj   +1 more source

sj-docx-3-bds-10.1177_20539517221089302 - Supplemental material for In search of the citizen in the datafication of public administration

open access: yes, 2022
Supplemental material, sj-docx-3-bds-10.1177_20539517221089302 for In search of the citizen in the datafication of public administration by Heather Broomfield and Lisa Reutter in Big Data ...
Lisa Reutter (12361058)   +1 more
core   +1 more source

sj-xlsx-3-bds-10.1177_20539517221101346 - Supplemental material for ‘Real-time’ air quality channels: A technology review of emerging environmental alert systems

open access: yes, 2022
Supplemental material, sj-xlsx-3-bds-10.1177_20539517221101346 for ‘Real-time’ air quality channels: A technology review of emerging environmental alert systems by Kayla Schulte in Big Data ...
Kayla Schulte (12879058)
core   +1 more source

Performance Evaluation of Precise Point Positioning for BeiDou-3 B1c/B2a Signals in the Global Range

open access: yesSensors, 2021
With the construction and development of the BeiDou navigation satellite system (BDS), the precise point positioning (PPP) performance of the BDS is worthy of research.
Ershen Wang   +6 more
doaj   +1 more source

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