Outputs (14)

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.