Displacement response of a concrete arch dam to seasonal temperature fluctuations and reservoir level rise during the first filling period: evidence from geodetic data
The present study evaluates the dynamic behaviour of the Ermenek Dam, the second
highest dam in Turkey, based on conventional geodetic measurements and Finite Element …
highest dam in Turkey, based on conventional geodetic measurements and Finite Element …
Robust procedures in processing measurements in geodesy and surveying: a review
R Duchnowski, P Wyszkowska - Measurement Science and …, 2024 - iopscience.iop.org
Outlying observations are undesirable but possible elements of geodetic measurements. In
such a context, the primary and trivial solution is to repeat “suspected” observations. The …
such a context, the primary and trivial solution is to repeat “suspected” observations. The …
Feasibility of retrieving effective reflector height using GNSS-IR from a single-frequency android smartphone SNR data
C Altuntas, N Tunalioglu - Digital Signal Processing, 2021 - Elsevier
Abstract Global Navigation Satellite Systems (GNSS) have been routinely used for geodetic-
based survey and mapping studies such as precise point positioning, landslide, earthquake …
based survey and mapping studies such as precise point positioning, landslide, earthquake …
GIRAS: an open-source MATLAB-based software for GNSS-IR analysis
C Altuntas, N Tunalioglu - GPS Solutions, 2022 - Springer
Abstract Global Navigation Satellite System Interferometric Reflectometry (GNSS-IR) has
become a robust method to extract the characteristic environmental features of reflected …
become a robust method to extract the characteristic environmental features of reflected …
Sub-meter-level navigation with an enhanced multi-GNSS single-point positioning algorithm using iGMAS ultra-rapid products
Ultra-rapid products have the advantage of being used in real-time positioning with no
external connections. In this study, these products provided by the international GNSS …
external connections. In this study, these products provided by the international GNSS …
Investigating efficacy of robust M-estimation of deformation from observation differences
K Nowel - Survey review, 2016 - Taylor & Francis
Generalized robust M-estimation of deformation from observation differences (GREDOD) is
a robust method for deformation analysis of geodetic control networks. This method has …
a robust method for deformation analysis of geodetic control networks. This method has …
Enhancing snow depth estimations through iterative satellite elevation range selection in GNSS-IR to account for terrain variation
C Altuntas, N Tunalioglu - IEEE Transactions on Geoscience …, 2023 - ieeexplore.ieee.org
The multipath effect in Global Navigation Satellite System (GNSS) has become a robust data
source thanks to GNSS interferometric reflectometry (GNSS-IR), which provides environment …
source thanks to GNSS interferometric reflectometry (GNSS-IR), which provides environment …
What is the relation between smearing effect of least squares estimation and its influence function?
In some cases, tests for outliers and robust methods based on the Least Square Estimation
(LSE) fail to detect and isolate outliers. LSE'smears the effect'of an outlier on all estimates of …
(LSE) fail to detect and isolate outliers. LSE'smears the effect'of an outlier on all estimates of …
Implementing robust outlier detection to enhance estimation accuracy of GNSS-IR based seasonal snow depth retrievals
Monitoring snow depth variations aligned with the seasonal cycle is crucial for studies on
climate change and its impacts due to global warming. Especially in terms of snow …
climate change and its impacts due to global warming. Especially in terms of snow …
Reliability of models in kinematic deformation analysis
A kinematic deformation analysis (KDA) model is mostly preferred to estimate the
displacement, velocity, and acceleration parameters in deformation analysis. Different …
displacement, velocity, and acceleration parameters in deformation analysis. Different …