Results 31 to 40 of about 5,569,552 (285)

Towards PPP-RTK: Ambiguity resolution in real-time precise point positioning [PDF]

open access: yesAdvances in Space Research, 2011
Abstract Integer ambiguity resolution at a single station can be achieved by introducing predetermined uncalibrated phase delays (UPDs) into the float ambiguity estimates of precise point positioning (PPP). This integer resolution technique has the potential of leading to a PPP-RTK (real-time kinematic) model where PPP provides rapid convergence to a
Geng, J.   +3 more
openaire   +2 more sources

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

open access: yesRemote 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   +3 more
doaj   +1 more source

PPP-RTK with Rapid Convergence Based on SSR Corrections and Its Application in Transportation

open access: yesRemote Sensing, 2023
Real-time Kinematic (RTK) positioning provides centimeter-level positioning accuracy within several seconds, but it has to rely on a nearby base station.
Xiangdong An   +2 more
doaj   +1 more source

BDS-3/GPS/Galileo OSB Estimation and PPP-AR Positioning Analysis of Different Positioning Models

open access: yesRemote Sensing, 2022
With the completion of the BeiDou Global Navigation Satellite System (BDS-3), the multi-system precise point positioning ambiguity resolution (PPP-AR) has been realized. The satellite phase fractional cycle bias (FCB) is a key to the PPP-AR.
Bo Li   +8 more
doaj   +1 more source

Real-time GNSS precise point positioning with smartphones for vehicle navigation

open access: yesSatellite Navigation, 2022
The availability of raw Global Navigation Satellite System (GNSS) measurements from Android smart devices gives new possibilities for precise positioning solutions, e.g., Precise Point Positioning (PPP).
Zishen Li   +4 more
doaj   +1 more source

DOKŁADNOŚĆ WYZNACZANIA POZYCJI Z ZASTOSOWANIEM PERMANENTNYCH USŁUG INTERNETOWYCH PPP (PRECISE POINT POSITIONING) [PDF]

open access: yes, 2017
Precyzyjne pozycjonowanie PPP to metoda wyznaczania pozycji przy pomocy samodzielnego odbiornika GNSS. Może stanowić alternatywną technikę do pomiarów różnicowych gdzie niezbędnym jest utrzymanie łączności z pojedynczą stacją RTK lub regionalną siecią ...
Marcin MALINOWSKI, Malinowski, M.
core   +1 more source

The Bias in PPP-B2b Real-Time Clock Offset and the Strategy to Reduce It

open access: yesRemote Sensing, 2022
Precise point positioning can provide accurate coordinates to users without reference stations, and the high-precision real-time clock offset product is necessary for real-time precise point positioning application.
Jinhuo Liu   +6 more
doaj   +1 more source

PPP models and performances from single- to quad-frequency BDS observations

open access: yesSatellite Navigation, 2020
Nowadays, China BeiDou Navigation Satellite System (BDS) has been developed well and provided global services with highly precise positioning, navigation and timing (PNT) as well as unique short-message communication, particularly global system (BDS-3 ...
Shuanggen Jin, Ke Su
doaj   +1 more source

Performance analysis of real-time and post-mission kinematic precise point positioning in marine environments

open access: yesGeodesy and Geodynamics, 2020
This article focuses on the performance analysis of both real-time and post-mission kinematic precise point positioning (PPP) in challenging marine environments.
Serdar Erol   +3 more
doaj   +1 more source

Precise Point Positioning with raPPPid

open access: yes
Precise Point Positioning (PPP) is an effective GNSS positioning method for various high-precision applications. PPP utilizes precise satellite products, accurate error modeling, and advanced algorithms to achieve centimeter or even millimeter level ...
Wareyka-Glaner, Marcus Franz; orcid:
core   +4 more sources

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