Preliminary assessment of the effect of noise on velocity uncertainty on the Nigerian permanent GNSS network

Title:

Preliminary assessment of the effect of noise on velocity uncertainty on the Nigerian permanent GNSS network

Creator:

Bawa, Swafiyudeen, Ojigi, Lazarus Mustapha, Dodo, Joseph Danasabe, and Lawal, Kola Muideen

Identifier:

https://cdk.lib.cas.cz/client/handle/uuid:85a3b07d-37b0-42de-8400-356b0ed67255
uuid:85a3b07d-37b0-42de-8400-356b0ed67255
doi:10.13168/AGG.2019.0018

Subject:

NigNET, time series, noise, velocity, and Nigeria

Type:

model:article and TEXT

Format:

bez média and svazek

Description:

With the evolution of GNSS technology, geodynamic activities can appropriately be modelled nowadays. GNSS derived time series from wdhich velocities and their uncertainties are derived, are vital derivatives in geodynamic modelling processes. Therefore, understanding all the stochastic properties is crucial. Assuming that GNSS coordinate time series is characterized by only white noise may lead to underestimation of velocity uncertainties. In this contribution, noise behaviour of NigNET tracking stations position time series was examined by adopting WN, FL+WN, WN+RW, WN+PL. Using the maximum likelihood estimate (MLE), Akaike Information Criteria (AIC) and Bayesian Information Criteria (BIC) the quality of stochastic model or the goodness of fit of a stochastic model is determined. The results of this study show that the combination of white plus flicker noise is the best model for describing the stochastic part of NigNET tracking stations position time series.

Language:

English

Rights:

http://creativecommons.org/publicdomain/mark/1.0/
policy:public

Coverage:

225-234

Source:

Acta geodynamica et geomaterialia : | 2019 Volume:16 | Number:3 (195)

Harvested from:

CDK

Metadata only:

false