All Outputs (31)

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)
Conference Proceeding
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)
Conference Proceeding
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)
Conference Proceeding
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)
Conference Proceeding
Psimoulis, P., Houlié, N., Clotaire, M., Meindl, M., & Rothacher, M. (2016). Analysis of 1-Hz GPS data for the estimation of long-period surface motion of Tohoku-Oki Mw9.0 2011 earthquake.

The GPS displacement time series are today mostly used for the estimation of the transient (period

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)
Conference Proceeding
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.