Feasibility Analysis of the Performance of Low-Cost Gnss Receivers in Monitoring Dynamic Motion

Xue, Chenyu; Psimoulis, Panos; Meng, Xiaolin

doi:10.2139/ssrn.4121966

Cited by 1 publication

(1 citation statement)

References 57 publications

(119 reference statements)

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Other studies mostly focused on geohazard monitoring such as landslide monitoring (Biagi et al 2016;Cina and Piras 2015;Heunecke et al 2011). Also, few studies tested the low-cost GNSS receivers in civil engineering-related SHM applications requiring continuous monitoring apart from Manzini et al (2022), Poluzzi et al (2019), andXue et al (2022). Therefore, we conducted an experimental study to assess the performance of the lowcost GNSS receivers in monitoring the dynamic horizontal and vertical motion of different amplitudes and frequencies against the performance of geodetic-grade GNSS receivers or the Robotic Total Station (RTS).…”

Section: Introductionmentioning

confidence: 99%

Assessment of the accuracy of low-cost multi-GNSS receivers in monitoring dynamic response of structures

et al. 2022

View full text Add to dashboard Cite

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 conducted in an independent global coordinate system. However, the high cost of the GNSS stations, which are consisted of dual-frequency receivers and geodetic GNSS antennas, is the main reason of the limited application of GNSS for bridge monitoring. In this study, we assessed the performance of low-cost multi-GNSS receivers in monitoring dynamic motion, similar to that of bridge response. The performance of the low-cost GNSS receivers was assessed based on controlled experiments of horizontal and vertical motion. For the horizontal motion, controlled experiments of circular motion of various predefined radius between 5 and 50 cm were executed where the low-cost GNSS receivers were assessed against dual-frequency geodetic receivers. For the vertical motion, manually controlled experiments of vertical oscillations of amplitude 8 and 15 mm were executed where the low-cost GNSS receivers were assessed against the Robotic Total Station (RTS). Finally, a low-cost monitoring system formed by two closely spaced low-cost GNSS receivers was applied in dynamic displacement monitoring of the Wilford Suspension Bridge. The analysis of the low-cost GNSS data revealed the beneficial contribution of (i) the multi-constellation on the accuracy and precision of the GNSS solution and (ii) the combination of closely spaced low-cost GNSS receivers, to limit potential cycle slips and the low-cost GNSS noise level and reach accuracy and precision similar to that of geodetic-grade GNSS receivers. This was confirmed in the bridge monitoring application, where the main modal frequency and the response amplitude of the bridge were identified successfully by the low-cost GNSS receivers’ data analysis.

show abstract