Assessment of multi-GNSS precise orbit and clock products from different analysis centers based on precise point positioning

Title:

Assessment of multi-GNSS precise orbit and clock products from different analysis centers based on precise point positioning

Creator:

Li, Weiguo and Kačmařík, Michal

Identifier:

https://cdk.lib.cas.cz/client/handle/uuid:29ff271f-77c1-4702-8de3-0bc8d749359d
uuid:29ff271f-77c1-4702-8de3-0bc8d749359d
issn:1214-9705
doi:10.13168/AGG.2021.0027

Subject:

satelitní navigační systémy, satellite navigation systems, Multi-GNSS, precise products, Precise Point Positioning, IGS MGEX, RTKLIB, 7, and 551

Type:

model:article and TEXT

Format:

print, bez média, and svazek

Description:

Performance of 24h static Precise Point Positioning (PPP) solutions based on multi-GNSS precise satellite orbit and clock products from four analysis centers and seven various constellation combinations was studied to evaluate their quality and characteristics. Data from ten European and four Chinese GNSS stations and 152 days long period from year 2020 were processed. Obtained coordinates were firstly compared with those provided by IGS final weekly combined solution. In Europe, the best agreement with this reference product was reached by solutions including Galileo signals, namely by a combination of GPS+GLONASS+Galileo systems with a mean RMS of 11 mm. This situation was different in China where inclusion of Galileo always led to worse results and the best agreement was achieved by a combination of GPS+GLONASS systems. Although product provided by German Research Center for Geosciences (GFZ) could be selected as the best performing over Europe and product by Center for Orbit Determination in Europe (CODE) over China, differences between individual precise products were mostly at a minimal level. Secondly, coordinates repeatability over the processed period was computed in order to assess the positioning stability. In this regard, the lowest values in both horizontal and vertical direction were reached by GPS+GLONASS solutions. From the perspective of precise products, the repeatability results were dependent on the selected constellation where mainly a specific behavior of product from Wuhan University (WUM) for Galileo system was observed., Weiguo Li and Michal Kačmařík., and Obsahuje bibliografii

Language:

English

Rights:

http://creativecommons.org/licenses/by-nc-sa/4.0/
policy:public

Coverage:

387-397

Source:

Acta geodynamica et geomaterialia : | 2021 Volume:18 | Number:3 (203)

Harvested from:

CDK

Metadata only:

false