Results 51 to 60 of about 269 (137)

Undifferenced precise time transfer with information‐constraints

open access: yesIET Radar, Sonar &Navigation, Volume 18, Issue 3, Page 410-422, March 2024.
The undifferenced precise time transfer method based on information constraints could effectively be used to smooth the clock difference sequence of the receiver and the clock difference sequence of the time transfer link. This method can also be used to reflect the performance of atomic clocks at GPS stations and is better suited for the precise time ...
Mingyue Liu   +6 more
wiley   +1 more source

D2,1 Online mapping of Chinese and European ICT industrial as sociations – Progress report [PDF]

open access: yes, 2015
This document is the first deliverable of CHOICE project task 2.2 Bringing together European and Chinese Industrial Associations. This task will, at the end of the second year of the project, have delivered a final version of an online database of ...
Itagaki, T, Mo, T, Owens, TJ
core  

Analysis and Assessment of BDS‐3 Five Single‐Frequency Civilian Signals Single Point Positioning Considering Time Group Delay and Intersignal Correction

open access: yesInternational Journal of Aerospace Engineering, Volume 2024, Issue 1, 2024.
The BeiDou Global Navigation Satellite System (BDS‐3) has been providing global positioning, navigation, and timing (PNT) services for over 3 years. Single‐frequency single point positioning (SPP) receivers have significant advantages such as low hardware cost and easy implementation, making them widely used in engineering practice.
Xingli Sun, Dakun Sun
wiley   +1 more source

Multi-Global Navigation Satellite System for Earth Observation: Recent Developments and New Progress [PDF]

open access: yes
The Global Navigation Satellite System (GNSS) has made important progress in Earth observation and applications. With the successful design of the BeiDou Navigation Satellite System (BDS), four global navigation satellite systems are available ...
Gino Dardanelli   +3 more
core   +1 more source

Robust GNSS Carrier Phase-based Position and Attitude Estimation Theory and Applications [PDF]

open access: yes, 2022
Mención Internacional en el título de doctorNavigation information is an essential element for the functioning of robotic platforms and intelligent transportation systems. Among the existing technologies, Global Navigation Satellite Systems (GNSS) have
Arias Medina, Daniel
core   +1 more source

Differences in Time Comparison and Positioning of BDS-3 PPP-B2b Signal Broadcast Through GEO

open access: yesRemote Sensing
The BeiDou-3 Navigation Satellite System (BDS-3) precise point positioning (PPP) service through the B2b signal (PPP-B2b) leverages precise correction data disseminated by satellites to eliminate or mitigate key error sources, including satellite orbit ...
Hongjiao Ma   +4 more
doaj   +1 more source

MultiGNSS og Absolutt Posisjonsbestemmelse. Litteraturstudie og programvære implementering [PDF]

open access: yes, 2023
I dag utvikles nye teknologier fortere enn noen gang. Man ser verdien av å automatisere diverse oppgaver, både for å spare tid og eliminere mennesket-faktoren.
Sherstnyakova, Liudmila
core  

Trustworthy precise point positioning with global navigation satellite systems

open access: yes, 2023
With the modernization of the Global Navigation Satellite System (GNSS), GNSS precise point positioning (PPP) technology becomes popular benefiting from its wide coverage and high accuracy.
Zhang, Wenhao
core   +1 more source

Rethinking MSME finance in Asia and the Pacific : a post-crisis policy agenda [PDF]

open access: yes, 2021
MSMEs are an important engine of economic growth and development due to their large share in total employment and their participation in production value chains and trade. However, they are often disadvantaged due to their small operational size and lack
UN.ESCAP
core  

A New Cooperative PPP-RTK System with Enhanced Reliability in Challenging Environments [PDF]

open access: yes, 2023
Compared to the traditional PPP-RTK methods, cooperative PPP-RTK methods provide expandable service coverage and eliminate the need for a conventional expensive data processing center and the establishment and maintenance of a permanently deployed ...
Lyu, Zhitao
core   +2 more sources

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