Application and evaluation of a GPS multi-antenna system for dam deformation monitoring

He, Xiufeng; Yang, Guang; Ding, Xiaoli; Chen, Yongqi

doi:10.1186/bf03352545

Cited by 29 publications

(13 citation statements)

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“…He et al conducted a remote-controlled GPS monitoring system using GPS multiantenna technology and General Packet Radio Service (GPRS) wireless data communication to monitor the dam deformation and steep slope movement for reducing cost in large projects [7][8][9]. However, the multiantenna method is not multiantenna clock-synchronized technology in the true sense.…”

Section: Introductionmentioning

confidence: 99%

Evaluation and Analysis of Dam Operating Status Using One Clock-Synchronized Dual-Antenna Receiver

et al. 2018

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Higher monitoring cost is the main limiting factor in the application of geodetic receivers in dam deformation monitoring, as the number of receivers applied in one dam is always too large. In this paper, an improved GNSS monitoring scheme is proposed. Firstly, three-dimensional finite element model is built to simulate the main deformation part of the dam, and only one clocksynchronized dual-antenna receiver is used to set the reference and monitoring stations; then, the dam displacement warning standard is determined based on the relationship between the corresponding surface displacement and safety factor of the different mechanical parameter combination; finally, through BDS/GPS dam deformation monitoring system for Lijiaxia in China, the operating status of dam is evaluated. Through comparative analysis, it is found that the scheme is feasible.

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Section: Introductionmentioning

confidence: 99%

Evaluation and Analysis of Dam Operating Status Using One Clock-Synchronized Dual-Antenna Receiver

et al. 2018

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“…A special device of GPS multi‐antenna switch was designed for sequentially receiving GPS signals from each antennas and sending to a common receiver ( Figure ) . The other signal switch devices similar to GPS multi‐antenna switch were also designed by Forward et al and He et al The multi‐antenna GPS system can significantly reduce GPS hardware costs for monitoring deformations. This multi‐antenna technique is only suitable to the long‐term static displacement monitoring of engineering structures because the data of multi‐antenna GPS system are not collected continuously …”

Section: Innovative Techniques Of Gnss Data Acquisitionmentioning

confidence: 99%

Global Navigation Satellite System‐based positioning technology for structural health monitoring: a review

Meng

Yan

et al. 2019

Struct Control Health Monit

109

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Summary Global Navigation Satellite System (GNSS) positioning technology has had widespread applications in the structural health monitoring as its overall performance has improved significantly in the last two decades. It is capable of providing timely and accurate structural vibration information such as dynamic displacements and modal frequencies at higher performance than traditional accelerometers. The studies summarized in this paper focus on the improvement of the multi‐sensors and multi‐constellation data acquisition techniques, the improvement of multiple approaches for erroneous noise mitigation, and innovative modal parameter identification methods. We also detailed the applications of GNSS on the deformation monitoring for towers, chimneys, tall buildings, and bridges. With continuous enhancements in the algorithm and hardware of GNSS, it is expected that the application of GNSS technology can be expanded to other fields such as bridge cable‐force measurements and bridge weight‐in‐motion as well as structural deformation monitoring.

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“…Due to its high precision, 24 hours availability, operability under all weather conditions and automation, GPS technique has been widely used in monitoring ground movement, deformation and subsidence (He et al, 2004;King et al, 1995;Kogan et al, 2000). In Victoria, GPSnet with its high-precision observation data provides a technically-advanced and cost-effective geoscientific infrastructure for deformation monitoring analysis.…”

Section: Introductionmentioning

confidence: 99%

Deformation Monitoring and Analysis Using Victorian Regional CORS Data

Zhang¹,

Hu²,

Liu³

et al. 2005

J. of GPS

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Abstract. New opportunities for the refinement of ionospheric modelling and reduction of the ionospheric error in GPS measurements arise since a third-frequency will be introduced for the modernised GPS system. This paper investigates theoretical models of the ionospheric refractive error. A triple-frequency method of correcting the 1 st and 2 nd order ionospheric refraction is presented and a triple-frequency ionosphere-free combination method is proposed for GPS modernization. These new methods can be equally applied to the European GALILEO system. In addition, typical effects of the 2 nd and 3 rd order ionospheric effects are also investigated, and a correct formula for the 3 rd order ionospheric error is derived in a simple way for easy implementation.It is anticipated that the proposed refraction correction methods will play an important role in both the modernized GPS and GALILEO systems. Results show that the proposed triple-frequency methods can correct the ionospheric refraction effects to a millimetre level. Since the models are given in simple forms, these corrections can be easily implemented in many real-time applications and the triple-frequency methods for correcting high-order ionospheric can significantly eliminate the error remained in the current ionospheric models. The method developed will potentially contribute to a better long-range baseline ambiguity resolution and an accuracy improvement in precise point positioning.

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Application and evaluation of a GPS multi-antenna system for dam deformation monitoring

Cited by 29 publications

References 0 publications

Evaluation and Analysis of Dam Operating Status Using One Clock-Synchronized Dual-Antenna Receiver

Evaluation and Analysis of Dam Operating Status Using One Clock-Synchronized Dual-Antenna Receiver

Global Navigation Satellite System‐based positioning technology for structural health monitoring: a review

Deformation Monitoring and Analysis Using Victorian Regional CORS Data

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