Assessment of Dynamic Measurement Accuracy of GPS in Three Directions

Chan, Wai-Sum; Xu, You Lin; Ding, Xiaoli; Xiong, Y. L.; Dai, Wujiao

doi:10.1061/(asce)0733-9453(2006)132:3(108)

Cited by 81 publications

(52 citation statements)

References 14 publications

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“…Construction of the experimental platform was constructed in the framework of the Diploma Thesis of Spyropoulos [11]. This device is different from others used in the past mostly for the assessment of GPS measurements [10,12] because it permits oscillations with pre-defined characteristics along the vertical axis, along which GPS presents the largest uncertainties [13], and because the motion of the platform is controlled by the LVDT sensor.…”

Section: Methodsmentioning

confidence: 99%

Phase effect in time-stamped accelerometer measurements – an experimental approach

Moschas

Stiros

2012

Int. J. Metrol. Qual. Eng.

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Abstract. The phase error in a high quality accelerometer was investigated on the basis of systematic experiments on a prototype platform permitting controlled vertical harmonic oscillations. The recordings of an accelerometer and of an ultra-high frequency GPS fixed on this platform were compared with those of a LVDT transducer, controlling the platform movement. All sensors were supported by independent GPS timing. The output of this study is that the recordings of accelerometers are characterized by a random phase error, which, however, decreases with the increase of the oscillation frequency, as dictated from the laws of mechanics. Such errors are important given the increasing use of combinations of accelerometers with various sensors for a wide range of applications. A simple method for the correction of such errors is proposed.

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Section: Methodsmentioning

confidence: 99%

Phase effect in time-stamped accelerometer measurements – an experimental approach

Moschas

Stiros

2012

Int. J. Metrol. Qual. Eng.

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“…The apparent wandering of the stable (base) receiver reflecting noise is used to correct the apparent wandering of the moving (rover) receiver, reflecting real displacement plus noise, and to radically improve the accuracy of its instantaneous coordinates [26]. Moreover, whether the DGPS accuracy can approach a sub-centimeter to millimeter level depends on many factors, such as GPS sampling frequency, satellite coverage, multipath effects and GPS commercial methods for data processing [60,61].…”

Section: Gps Monitoring Techniquesmentioning

confidence: 99%

“…DGPS measurements' accuracy were examined and evaluated by some researchers [60,62,63]. Chan et al [60] examined the DGPS (Leica GX1230, and AT504 choke ring antennas with 20 Hz) using experimental movement of plate in three directions; the table is shocked by a computer system.…”

Section: Gps Monitoring Techniquesmentioning

confidence: 99%

“…Chan et al [60] examined the DGPS (Leica GX1230, and AT504 choke ring antennas with 20 Hz) using experimental movement of plate in three directions; the table is shocked by a computer system. In addition, they checked different motion cases, and their results found that the DGPS measurements' accuracy percentage reached 19.2% and 28.78% with strong plate motion in horizontal and vertical directions, respectively.…”

Section: Gps Monitoring Techniquesmentioning

confidence: 99%

“…In addition, they checked different motion cases, and their results found that the DGPS measurements' accuracy percentage reached 19.2% and 28.78% with strong plate motion in horizontal and vertical directions, respectively. Moreover, a real wind load is applied on the plate and the accuracy of the plate movements using the DGPS are 3.8 and 7.62 mm, respectively [60]. In addition, Ge et al [62] tested the DGPS to measure a simulation for real seismic observation in Japan, the results for the system used (Trimble MS750 GPS, 20 Hz) are compared with the accelerometer and velocimeter measurements.…”

Section: Gps Monitoring Techniquesmentioning

confidence: 99%

See 2 more Smart Citations

Recent Advances of Structures Monitoring and Evaluation Using GPS-Time Series Monitoring Systems: A Review

Kaloop

Elbeltagi

et al. 2017

IJGI

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This paper presents the recent development in Structural Health Monitoring (SHM) applications for monitoring the dynamic behavior of structures using the Global Positioning Systems (GPS) technique. GPS monitoring systems for real-time kinematic (RTK), precise point positioning (PPP) and the sampling frequency development of GPS measurements are summarized for time series analysis. Recent proposed time series GPS monitoring systems, errors sources and mitigation, as well as system analysis and identification, are presented and discussed.

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Wind and Structural Health Monitoring

2013

Wind Effects on Cable‐Supported Bridges

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Assessment of Dynamic Measurement Accuracy of GPS in Three Directions

Cited by 81 publications

References 14 publications

Phase effect in time-stamped accelerometer measurements – an experimental approach

Phase effect in time-stamped accelerometer measurements – an experimental approach

Recent Advances of Structures Monitoring and Evaluation Using GPS-Time Series Monitoring Systems: A Review

Wind and Structural Health Monitoring

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