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PANAGIOTIS PSIMOULIS's Outputs (33)

Analysis of the performance of GNSS receiver in monitoring the behaviour of the wind turbine nacelle (2024)
Journal Article
Xue, C., Psimoulis, P. A., Hancock, C., Ochieng, F. X., Yang, Y., Li, C., Bhatia, P., Li, Y., & Tang, X. (2024). Analysis of the performance of GNSS receiver in monitoring the behaviour of the wind turbine nacelle. Engineering Structures, 317, Article 118633. https://doi.org/10.1016/j.engstruct.2024.118633

Wind turbines are frequently employed to harness the kinetic energy of the wind for electricity generation, and they are anticipated to encounter diverse wind forces that could lead to potentially severe structural reactions. Hence, structural health... Read More about Analysis of the performance of GNSS receiver in monitoring the behaviour of the wind turbine nacelle.

An Evaluation of Optimization Algorithms for the Optimal Selection of GNSS Satellite Subsets (2024)
Journal Article
Alluhaybi, A., Psimoulis, P., & Remenyte-Prescott, R. (2024). An Evaluation of Optimization Algorithms for the Optimal Selection of GNSS Satellite Subsets. Remote Sensing, 16(10), Article 1794. https://doi.org/10.3390/rs16101794

Continuous advancements in GNSS systems have led, apart from the broadly used GPS, to the development of other satellite systems (Galileo, BeiDou, GLONASS), which have significantly increased the number of available satellites for GNSS positioning ap... Read More about An Evaluation of Optimization Algorithms for the Optimal Selection of GNSS Satellite Subsets.

Assessment Accuracy of Standard Point Positioning Enhanced by Observation and Position Domain Filtering Utilizing a Multi-Epoch Least-Squares Integration Method (2024)
Journal Article
Li, F., Psimoulis, P., Li, Q., Yang, J., Gao, J., Kou, X., …Meng, X. (2024). Assessment Accuracy of Standard Point Positioning Enhanced by Observation and Position Domain Filtering Utilizing a Multi-Epoch Least-Squares Integration Method. Remote Sensing, 16(3), Article 517. https://doi.org/10.3390/rs16030517

To enhance the positioning accuracy of standalone GNSS receivers in environments unable to provide precise ephemeris and clock offset, such as undeveloped forest areas that lack network communication and power supply, this study employed the Time Dif... Read More about Assessment Accuracy of Standard Point Positioning Enhanced by Observation and Position Domain Filtering Utilizing a Multi-Epoch Least-Squares Integration Method.

Detection of GNSS antenna oscillatory motion and multipath conditions via exploitation of multipath-induced SNR variations (2023)
Journal Article
Peppa, I., & Psimoulis, P. A. (2023). Detection of GNSS antenna oscillatory motion and multipath conditions via exploitation of multipath-induced SNR variations. GPS Solutions, 27(3), Article 117. https://doi.org/10.1007/s10291-023-01432-6

The multipath effect is well known as one of the dominant error sources in most high-precision GNSS applications, as its site-dependent and fast-changing nature render it challenging to model and mitigate using differencing techniques. However, in th... Read More about Detection of GNSS antenna oscillatory motion and multipath conditions via exploitation of multipath-induced SNR variations.

Monitoring the dynamic response of a pedestrian bridge by using low-cost GNSS receivers (2023)
Journal Article
Xue, C., & Psimoulis, P. A. (2023). Monitoring the dynamic response of a pedestrian bridge by using low-cost GNSS receivers. Engineering Structures, 284, Article 115993. https://doi.org/10.1016/j.engstruct.2023.115993

The development of low-cost GNSS receivers with carrier-phase measurement capacity has led to low-budget GNSS applications of higher accuracy and precision. Recent studies have mainly been carried out with those low-cost receivers for landslide monit... Read More about Monitoring the dynamic response of a pedestrian bridge by using low-cost GNSS receivers.

Assessment of the accuracy of low-cost multi-GNSS receivers in monitoring dynamic response of structures (2022)
Journal Article
Xue, C., Psimoulis, P., Horsfall, A., Zhang, Q., & Meng, X. (2022). Assessment of the accuracy of low-cost multi-GNSS receivers in monitoring dynamic response of structures. Applied Geomatics, https://doi.org/10.1007/s12518-022-00482-8

The monitoring of bridges is a crucial operation for their structural health examination and maintenance. GNSS technology is one of the methods which are applied with the main advantage that the direct measurement of the bridge displacement is conduc... Read More about Assessment of the accuracy of low-cost multi-GNSS receivers in monitoring dynamic response of structures.

Feasibility analysis of the performance of low-cost GNSS receivers in monitoring dynamic motion (2022)
Journal Article
Xue, C., Psimoulis, P. A., & Meng, X. (2022). Feasibility analysis of the performance of low-cost GNSS receivers in monitoring dynamic motion. Measurement, 202, Article 111819. https://doi.org/10.1016/j.measurement.2022.111819

The development of low-cost GNSS receivers broadens their applications, such as deformation monitoring, which have been performed routinely by survey-grade GNSS receivers. To evaluate the performance of low-cost GNSS receivers, we assessed the precis... Read More about Feasibility analysis of the performance of low-cost GNSS receivers in monitoring dynamic motion.

Monitoring the Dynamics of Formby Sand Dunes Using Airborne LiDAR DTMs (2021)
Journal Article
Mahmoud, A. M. A., Hussain, E., Novellino, A., Psimoulis, P., & Marsh, S. (2021). Monitoring the Dynamics of Formby Sand Dunes Using Airborne LiDAR DTMs. Remote Sensing, 13(22), Article 4665. https://doi.org/10.3390/rs13224665

Coastal dunes play an important role in coastal erosion risk management, where they act as a dynamic natural sea defence line. Formby coast is part of the Sefton coast in the Northwest of England and is one of the largest and most rapidly evolving sa... Read More about Monitoring the Dynamics of Formby Sand Dunes Using Airborne LiDAR DTMs.

Monitoring the response of Severn Suspension Bridge in the United Kingdom using multi-GNSS measurements (2021)
Journal Article
Msaewe, H. A., Psimoulis, P. A., Hancock, C. M., Roberts, G. W., & Bonenberg, L. (2021). Monitoring the response of Severn Suspension Bridge in the United Kingdom using multi-GNSS measurements. Structural Control and Health Monitoring, 28(11), Article e2830. https://doi.org/10.1002/stc.2830

The application of GPS in bridge monitoring aims to determine accurately and precisely the response of the deck and towers of the bridge and estimate the main response characteristics (amplitude and modal frequencies). The main requirement of GPS mon... Read More about Monitoring the response of Severn Suspension Bridge in the United Kingdom using multi-GNSS measurements.

Pass-by-Pass Ambiguity Resolution in Single GPS Receiver PPP Using Observations for Two Sequential Days: An Exploratory Study (2021)
Journal Article
Xi, R., Chen, Q., Meng, X., Psimoulis, P., Jiang, W., & Xu, C. (2021). Pass-by-Pass Ambiguity Resolution in Single GPS Receiver PPP Using Observations for Two Sequential Days: An Exploratory Study. Remote Sensing, 13(18), Article 3728. https://doi.org/10.3390/rs13183728

“Pass-by-pass” or “track-to-track” ambiguity resolution removes Global Navigation Satellite System (GNSS) satellite hardware delays between adjacent undifferenced (UD) ambiguities, which is often applied in precise orbit determination (POD) for Low E... Read More about Pass-by-Pass Ambiguity Resolution in Single GPS Receiver PPP Using Observations for Two Sequential Days: An Exploratory Study.

Analysis of the performance of closely spaced low-cost multi-GNSS receivers (2021)
Journal Article
Xue, C., Psimoulis, P., Zhang, Q., & Meng, X. (2021). Analysis of the performance of closely spaced low-cost multi-GNSS receivers. Applied Geomatics, 13(3), 415-435. https://doi.org/10.1007/s12518-021-00361-8

© 2021, The Author(s). The recent advances of low-cost GNSS receivers have broadened their application field not only in positioning and navigation, but also in deformation monitoring of civil engineering structures and geohazards. Even though some c... Read More about Analysis of the performance of closely spaced low-cost multi-GNSS receivers.

An observation of non-stationary response to non-synoptic wind on the Forth Road Bridge (2020)
Journal Article
Owen, J. S., Nguyen, D. T., Meng, X., Psimoulis, P., & Xie, Y. (2020). An observation of non-stationary response to non-synoptic wind on the Forth Road Bridge. Journal of Wind Engineering and Industrial Aerodynamics, 206, Article 104389. https://doi.org/10.1016/j.jweia.2020.104389

© 2020 Elsevier Ltd The GeoSHM project feasibility study for monitoring the Forth Road Bridge is briefly introduced and the instrumentation summarised. The events of January 9th, 2015 are described, when the bridge was struck by storm Elon, which cau... Read More about An observation of non-stationary response to non-synoptic wind on the Forth Road Bridge.

The use of sar offset tracking for detecting sand dune movement in sudan (2020)
Journal Article
Mahmoud, A. M. A., Novellino, A., Hussain, E., Marsh, S., Psimoulis, P., & Smith, M. (2020). The use of sar offset tracking for detecting sand dune movement in sudan. Remote Sensing, 12(20), Article 3410. https://doi.org/10.3390/rs12203410

© 2020 by the authors. Licensee MDPI, Basel, Switzerland. Sand movement is one of the main environmental hazards in Northern Sudan that threaten livelihood and rural communities. This paper investigates for the first time the use of the Synthetic Ape... Read More about The use of sar offset tracking for detecting sand dune movement in sudan.

A novel dynamical filter based on multi-epochs least-squares to integrate the carrier phase and pseudorange observation for GNSS measurement (2020)
Journal Article
Li, F., Gao, J., Psimoulis, P., Meng, X., & Ke, F. (2020). A novel dynamical filter based on multi-epochs least-squares to integrate the carrier phase and pseudorange observation for GNSS measurement. Remote Sensing, 12(11), Article 1762. https://doi.org/10.3390/rs12111762

© 2020 by the authors. The high noise of pseudorange and the ambiguity of carrier phase observation restrain the GNSS (Global Navigation Satellite System) application in military, industrial, and agricultural, to name a few. Thus, it is crucial for G... Read More about A novel dynamical filter based on multi-epochs least-squares to integrate the carrier phase and pseudorange observation for GNSS measurement.

A Multiple Algorithm Approach to the Analysis of GNSS Coordinate Time Series for Detecting Geohazards and Anomalies (2020)
Journal Article
Habboub, M., Psimoulis, P. A., Bingley, R., & Rothacher, M. (2020). A Multiple Algorithm Approach to the Analysis of GNSS Coordinate Time Series for Detecting Geohazards and Anomalies. Journal of Geophysical Research. Solid Earth, 125(2), Article e2019JB018104. https://doi.org/10.1029/2019JB018104

©2020. American Geophysical Union. All Rights Reserved. In this study, a multiple algorithm approach to the analysis of GNSS coordinate time series for detecting geohazards and anomalies is proposed. This multiple algorithm approach includes the nove... Read More about A Multiple Algorithm Approach to the Analysis of GNSS Coordinate Time Series for Detecting Geohazards and Anomalies.

Application of GeoSHM System in Monitoring Extreme Wind Events at the Forth Road Bridge (2019)
Journal Article
Meng, X., Nguyen, D. T., Owen, J. S., Xie, Y., Psimoulis, P., & Ye, G. (2019). Application of GeoSHM System in Monitoring Extreme Wind Events at the Forth Road Bridge. Remote Sensing, 11(23), Article 2799. https://doi.org/10.3390/rs11232799

© 2019 by the authors. Implementation of Structural Health Monitoring systems on long-span bridges has become mandatory in many countries to ascertain the safety of these structures and the public, taking into account an increase in usage and threats... Read More about Application of GeoSHM System in Monitoring Extreme Wind Events at the Forth Road Bridge.

Multi-sensor measurement of dynamic deflections and structural health monitoring of flexible and stiff bridges (2019)
Journal Article
Stiros, S., Psimoulis, P., Moschas, F., Saltogianni, V., Tsantopoulos, E., & Triantafyllidis, P. (2019). Multi-sensor measurement of dynamic deflections and structural health monitoring of flexible and stiff bridges. Bridge Structures, 15(1-2), 43-51. https://doi.org/10.3233/brs-190152

We investigated the response of bridges of different types to controlled and to wind and traffic-induced excitations; the emphasis was on deflections,derived from recordings of geodetic sensors and accelerometers (output-only analysis). Our focus w... Read More about Multi-sensor measurement of dynamic deflections and structural health monitoring of flexible and stiff bridges.

Galileo Augmenting GPS Single-Frequency Single-Epoch Precise Positioning with Baseline Constrain for Bridge Dynamic Monitoring (2019)
Journal Article
Zhang, Q., Ma, C., Meng, X., Xie, Y., Psimoulis, P., Wu, L., …Dai, X. (2019). Galileo Augmenting GPS Single-Frequency Single-Epoch Precise Positioning with Baseline Constrain for Bridge Dynamic Monitoring. Remote Sensing, 11(4), Article 438. https://doi.org/10.3390/rs11040438

© 2019 by the authors. The Single-frequency Single-epoch double-differenced baseline resolution technique of Global Positioning System (GPS) provides a good opportunity for monitoring the displacement or deflection behavior of bridges under different... Read More about Galileo Augmenting GPS Single-Frequency Single-Epoch Precise Positioning with Baseline Constrain for Bridge Dynamic Monitoring.

Detection of ground motions using high-rate GPS time-series (2018)
Journal Article
Psimoulis, P., Houlié, N., Habboub, M., Michel, C., & Rothacher, M. (2018). Detection of ground motions using high-rate GPS time-series. Geophysical Journal International, 214(2), 1237–1251. https://doi.org/10.1093/gji/ggy198

Monitoring surface deformation in real-time help at planning and protecting infrastructures and populations, manage sensitive production (i.e. SEVESO-type) and mitigate long-term consequences of modifications implemented. We present RT-SHAKE, an algo... Read More about Detection of ground motions using high-rate GPS time-series.

Design and implementation of a new system for large bridge monitoring—GeoSHM (2018)
Journal Article
Meng, X., Nguyen, D. T., Xie, Y., Owen, J. S., Psimoulis, P., Ince, S., Chen, Q., Ye, J., & Bhatia, P. (2018). Design and implementation of a new system for large bridge monitoring—GeoSHM. Sensors, 18(3), https://doi.org/10.3390/s18030775

Structural Health Monitoring (SHM) is a relatively new branch of civil engineering that focuses on assessing the health status of infrastructure, such as long-span bridges. Using a broad range of in-situ monitoring instruments, the purpose of the SHM... Read More about Design and implementation of a new system for large bridge monitoring—GeoSHM.

Real-time characterization of large earthquakes using the predominant period derived from 1Hz GPS data (2018)
Journal Article
Psimoulis, P., Houlié, N., & Behr, Y. (in press). Real-time characterization of large earthquakes using the predominant period derived from 1Hz GPS data. Geophysical Research Letters, https://doi.org/10.1002/2017GL075816

Earthquake early warning (EEW) systems’ performance is driven by the trade-off between the need for a rapid alert and the accuracy of each solution. A challenge for many EEW systems has been the magnitude saturation for large events (Mw>7) and the re... Read More about Real-time characterization of large earthquakes using the predominant period derived from 1Hz GPS data.

Using the signal-to-noise ratio of GPS records to detect motion of structures (2017)
Journal Article
Peppa, I., Psimoulis, P., & Meng, X. (2018). Using the signal-to-noise ratio of GPS records to detect motion of structures. Structural Control and Health Monitoring, 25(2), Article e2080. https://doi.org/10.1002/stc.2080

Although major breakthroughs have been achieved during the last decades in the use of Global Positioning System (GPS) technology on structural health monitoring, the mitigation of the biases and errors impeding its positioning accuracy remains a chal... Read More about Using the signal-to-noise ratio of GPS records to detect motion of structures.

Deformation monitoring of a steel structure using 3D terrestrial laser scanner (TLS) (2017)
Presentation / Conference Contribution
Jatmiko, .-., & Psimoulis, P. (2017). Deformation monitoring of a steel structure using 3D terrestrial laser scanner (TLS).

Terrestrial Laser Scanner (TLS) offers a new approach of deformation analysis. Different from conventional equipment such as Global Navigation Satellite System (GNSS) and Total Station (TS), the entire surface of observed structure can be analysed by... Read More about Deformation monitoring of a steel structure using 3D terrestrial laser scanner (TLS).

The potential of high-rate GPS for strong ground motion assessment (2017)
Journal Article
Michel, C., Kelevitz, K., Houlié, N., Edwards, B., Psimoulis, P., Su, Z., …Giardini, D. (in press). The potential of high-rate GPS for strong ground motion assessment. Bulletin of the Seismological Society of America, 107(3), https://doi.org/10.1785/0120160296

We show that high-rate GPS can have a vital role to play in near real-time monitoring of potentially destructive earthquakes. We do this by investigating the potential of GPS in recording strong ground motions from earthquakes in Switzerland and Japa... Read More about The potential of high-rate GPS for strong ground motion assessment.

Investigating multi-GNSS performance in the UK and China based on a zero-baseline measurement approach (2017)
Journal Article
Msaewe, H. A., Hancock, C. M., Psimoulis, P., Roberts, G. W., Bonenberg, L., & de Ligt, H. (2017). Investigating multi-GNSS performance in the UK and China based on a zero-baseline measurement approach. Measurement, 102, https://doi.org/10.1016/j.measurement.2017.02.004

GPS is the positioning tool of choice for a wide variety of applications where accurate (cm level or less) positions are required. However GPS is susceptible to a variety of errors that degrade both the quality of the position solution and the availa... Read More about Investigating multi-GNSS performance in the UK and China based on a zero-baseline measurement approach.

Combination of GPS and RTS measurements for the monitoring of semi-static and dynamic motion of pedestrian bridge (2016)
Presentation / Conference Contribution
Psimoulis, P., Peppa, I., Bonenberg, L., Ince, S., & Meng, X. (2016). Combination of GPS and RTS measurements for the monitoring of semi-static and dynamic motion of pedestrian bridge.

GPS and accelerometers have been broadly used the last decade for the monitoring of flexible structures and bridges, while Robotic Total Station (RTS) has been successfully assessed for the monitoring of slow and dynamic motions. Further experimental... Read More about Combination of GPS and RTS measurements for the monitoring of semi-static and dynamic motion of pedestrian bridge.

Research and development of a pilot project using GNSS and Earth observation (GeoSHM) for structural health monitoring of the Forth Road Bridge in Scotland (2016)
Presentation / Conference Contribution
Meng, X., Xie, Y., Bhatia, P., Sowter, A., Psimoulis, P., Colford, B., …Li, X. (2016). Research and development of a pilot project using GNSS and Earth observation (GeoSHM) for structural health monitoring of the Forth Road Bridge in Scotland.

GeoSHM (GNSS and Earth Observation for Structural Health Monitoring) is a feasibility study project funded under the Integrated Application Promotion (IAP) program of the European Space Agency (ESA) in August 2013. Through integrated use of GNSS, Rem... Read More about Research and development of a pilot project using GNSS and Earth observation (GeoSHM) for structural health monitoring of the Forth Road Bridge in Scotland.

Analysis of 1-Hz GPS data for the estimation of long-period surface motion of Tohoku-Oki Mw9.0 2011 earthquake (2016)
Presentation / Conference Contribution
Psimoulis, P., Houlié, N., Clotaire, M., Meindl, M., & Rothacher, M. Analysis of 1-Hz GPS data for the estimation of long-period surface motion of Tohoku-Oki Mw9.0 2011 earthquake. Presented at 3rd Joint International Symposium on Deformation Monitoring

The GPS displacement time series are today mostly used for the estimation of the transient (period <2sec) and coseismic (static) displacement of an earthquake, while the estimation of the velocity and acceleration is based only seismic networks. In t...

Consistency of PPP GPS and strong-motion records: case study of Mw9.0 Tohoku-Oki 2011 earthquake (2015)
Journal Article
Psimoulis, P., Houlié, N., Meindl, M., & Rothacher, M. (2015). Consistency of PPP GPS and strong-motion records: case study of Mw9.0 Tohoku-Oki 2011 earthquake. Smart structures and systems, 16(2), https://doi.org/10.12989/sss.2015.16.2.347

GPS and strong-motion sensors are broadly used for the monitoring of structural health and Earth surface motions, focusing on response of structures, earthquake characterization and rupture modeling. Several studies have shown the consistency of the... Read More about Consistency of PPP GPS and strong-motion records: case study of Mw9.0 Tohoku-Oki 2011 earthquake.

Measuring sub-mm structural displacements using QDaedalus: a digital clip-on measuring system developed for total stations (2014)
Journal Article
Charalampous, E., Psimoulis, P., Guillaume, S., Spiridonakos, M., Klis, R., Burki, B., …Feltrin, G. (2015). Measuring sub-mm structural displacements using QDaedalus: a digital clip-on measuring system developed for total stations. Applied Geomatics, 7(2), https://doi.org/10.1007/s12518-014-0150-z

The monitoring of rigid structures of modal frequencies greater than 5 Hz and sub-mm displacement is mainly based so far on relative quantities from accelerometers, strain gauges etc. Additionally geodetic techniques such as GPS and Robotic Total Sta... Read More about Measuring sub-mm structural displacements using QDaedalus: a digital clip-on measuring system developed for total stations.

Long-period surface motion of the multi-patch Mw9.0 Tohoku-Oki earthquake (2014)
Journal Article
Psimoulis, P., Houlie, N., Michel, C., Meindl, M., & Rothacher, M. (2014). Long-period surface motion of the multi-patch Mw9.0 Tohoku-Oki earthquake. Geophysical Journal International, 199(2), https://doi.org/10.1093/gji/ggu302

We show that it is possible to capture the oscillatory ground motion induced by the Tohoku-Oki event for periods ranging from 3 to 100s using Precise Point Positioning (PPP). We find that the ground motions of the sedimentary basins of Japan were lar... Read More about Long-period surface motion of the multi-patch Mw9.0 Tohoku-Oki earthquake.

Identification of soil-structure interaction effects based on geodetic monitoring of a railway bridge (2014)
Presentation / Conference Contribution
Psimoulis, P., Stiros, S., & Moschas, F. (2014). Identification of soil-structure interaction effects based on geodetic monitoring of a railway bridge.

The monitoring of bridges using geodetic methodologies permits the direct measurement of displacements and potential identification of effects of soil-structure interaction. In this study the response of the historical Gorgopotamos railway (Central G... Read More about Identification of soil-structure interaction effects based on geodetic monitoring of a railway bridge.