Results 31 to 40 of about 5,765,436 (248)

Integrity monitoring scheme for single-epoch GNSS PPP-RTK positioning

Satellite Navigation, 2023
Integrity monitoring for precise point positioning is critical for safety-related applications. With the increasing demands of high-accuracy autonomous navigation for unmanned ground and aerial vehicles, the integrity monitoring method of high-precision ...
Wenhao Zhang, Jinling Wang
doaj   +1 more source

Precise Point Positioning with Almost Fully Deployed BDS-3, BDS-2, GPS, GLONASS, Galileo and QZSS Using Precise Products from Different Analysis Centers

Remote Sensing, 2021
The space segment of all the five satellite systems capable of providing precise position services, namely BeiDou Navigation Satellite System (BDS) (including BDS-3 and BDS-2), Global Positioning System (GPS), GLObal NAvigation Satellite System (GLONASS),
Xuanping Li, Lin Pan
doaj   +1 more source

Initial Assessment of BDS PPP-B2b Service: Precision of Orbit and Clock Corrections, and PPP Performance

Remote Sensing, 2021
On 31 July 2020, the Beidou global navigation satellite system (BDS-3) was officially announced as being commissioned. In addition to offering global positioning, navigation, and timing (PNT) services, BDS-3 also provides precise point positioning (PPP ...
Zhixi Nie, Xiaofei Xu, Zhenjie Wang, Jun Du   +3 more
doaj   +1 more source

An evaluation of real-time troposphere estimation based on GNSS Precise Point Positioning [PDF]

, 2017
peer reviewedIt is anticipated that the performance of real-time (RT) GNSS meteorology can be further improved by incorporating observations from multiple Global Navigation Satellite System (GNSS), including GPS, GLONASS, Galileo, and BeiDou.
Yuan, Yunbin, TEFERLE, Felix Norman, Kazmierski, Kamil, Kamil Kazmierski, Laurichesse, Denis, Wenwu Ding, Felix Norman Teferle, Ding, Wenwu, Yunbin Yuan, Denis Laurichesse   +9 more
core   +1 more source

Analysis of regionally enhanced GPS orbit and clock solutions and contribution to improvement of real-time precise point positioning

, 2012
This work experimentally examines the performance benefits of a regional CORS network to the GPS orbit and clock solutions for supporting real-time Precise Point Positioning (PPP).
Zhang, Weixing, Feng, Yanming, Wang, Charles, Gu, Shengfeng, Shi, Chuang   +4 more
core   +1 more source

A-PPP: Array-aided precise point positioning with global navigation satellites systems [PDF]

, 2012
In this paper, the global navigation satellite system (GNSS) precise point positioning (PPP) concept is generalized to array-aided PPP (A-PPP). A-PPP is a measurement concept tha tuses GNSS data, from multiple antennas in an array of known geometry, to ...
Peter Teunissen (20002758)
core   +2 more sources

Noninvasive tests for nonalcoholic fatty liver disease in a multi‐ethnic population: The HELIUS study

Hepatology Communications, EarlyView., 2022
Abstract Nonalcoholic fatty liver disease (NAFLD) is increasing in prevalence and severity globally, prompting noninvasive testing, yet limited data exist on noninvasive liver tests (NITs) including transient elastography (TE) in ethnically diverse populations.
Anne‐Marieke van Dijk, Yasaman Vali, Anne Linde Mak, Henrike Galenkamp, Max Nieuwdorp, Bert‐Jan van den Born, Adriaan Georgius Holleboom   +6 more
wiley   +1 more source

Application of “Galileo High Accuracy Service” on Single-Point Positioning

Sensors, 2023
Employment of precise positioning techniques will enable low-cost receivers for a variety of applications. The complexity of techniques such as Precise Point Positioning (PPP), or differential techniques that require the use of external sources of ...
Antonio Angrisano, Silvia Ascione, Giovanni Cappello, Ciro Gioia, Salvatore Gaglione   +4 more
doaj   +1 more source

Multi-constellation GNSS precise point positioning with multi-frequency raw observations and dual-frequency observations of ionospheric-free linear combination

Satellite Navigation, 2020
Precise point positioning (PPP) is famous for its capability of high-precision positioning with just one station as long as the receiver can receive global navigation satellite system (GNSS) signals.
Xiangdong An, Xiaolin Meng, Weiping Jiang   +2 more
doaj   +1 more source

Ionospheric Regional modeling Algorithm based on GNSS Precise Point Positioning [PDF]

, 2021
Precise point positioning (PPP) is an absolute spatial positioning technology different from carrier phase relative positioning. With the continuous development of Global navigation satellite system (GNSS), multi-constellation GNSS further provides PPP ...
Chen, Yan
core