Selected aspects of testing the positioning accuracy of GNSS receivers used in sports and recreation by dynamic measurements

Specht, Cezary; Szot, Tomasz; Specht, Mariusz; Dąbrowski, Paweł

doi:10.29359/bjhpa.11.2.08

Cited by 4 publications

(3 citation statements)

References 21 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…This frequency is commonly adopted for the recording of tracks in the majority of currently manufactured sport and recreation receivers (including those used for running and cycling). In the context of analyses described in publications [80,81], the frequency of 1 Hz appears to be adequate for monitoring a run over a distance of 2000 m.…”

Section: Test Receivers and The Test Proceduresmentioning

confidence: 99%

“…On the other hand, in [65][66][67] authors used their own measures. The right approach to measures can be found in publications [68]-CEP, DRMS and 2DRMS measures, in [69][70][71]-RMS, DRMS, 2DRMS, CEP, R68, R95 and SEP measures. It can also be observed that there are studies under different field conditions, which have a decisive influence on the positioning accuracy by GNSS receivers.…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Testing GNSS receiver accuracy in Samsung Galaxy series mobile phones at a sports stadium

Specht

Szot

Dąbrowski

et al. 2020

Meas. Sci. Technol.

Self Cite

View full text Add to dashboard Cite

For many years, global navigation satellite systems (GNSSs) have been used in professional navigation, land surveying and transport. The last decade has been a period of extending the area of their use to social applications, including those related to sports and recreation. Nowadays, both handheld recorders and mobile phones equipped with GNSS modules are widely used in fitness. Moreover, due to the popularisation of jogging, a mobile phone has become one of the essential navigational instruments which enables, inter alia, the determination of the distance covered by an amateur athlete, the duration of completing the route and the athlete's speed. However, each of satellite-based solutions is characterised by a different positioning accuracy and positioning availability, which have a decisive influence on the reliability of the parameters being measured. The article proposes a new measure of positioning accuracy, the stadium cross track error (SXTE) with a confidence level of 95% and 68%, as a universal comparison criterion for satellite sport receivers. The application of the method is presented with the example of receivers used in nine Samsung Galaxy series mobile phones. The method uses an athletics stadium that meets the International Association of Athletics Federation's standard for the running track length (400 m). The study demonstrated significant differences in positioning accuracies of particular GNSS receivers in Samsung Galaxy series mobile phones while allowing their accuracy to be unambiguously assessed.

show abstract

Section: Test Receivers and The Test Proceduresmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Testing GNSS receiver accuracy in Samsung Galaxy series mobile phones at a sports stadium

Specht

Szot

Dąbrowski

et al. 2020

Meas. Sci. Technol.

Self Cite

View full text Add to dashboard Cite

show abstract

“…(a) Predicted accuracy-the accuracy of position determination by the system relative to the actual values; (b) Repeatable accuracy-the level of accuracy that allows the user to return to the coordinates determined earlier by the same system; (c) Relative accuracy-the ability to measure (determine) the coordinates relative to a different user within the same system at the same time [13].…”

mentioning

confidence: 99%

Practical Limitations of Using the Tilt Compensation Function of the GNSS/IMU Receiver

Gučević,

Delčev,

Vasović Šimšić

2024

Remote Sensing

View full text Add to dashboard Cite

The research in this paper is related to the accuracy of the tilt compensation function of the GNSS/IMU receivers, which were examined in an open sky environment. The purpose of the paper is to point out to geodesists the conditions and limitations of using GNSS/IMU technology in precise measurements to not jeopardize the coordinate’s accuracy. The environment in which the measurement is made affects the quality of the GNSS signal and can limit the visibility of the satellite, leading to larger errors in the measurement. In this experiment, the current performance of the GNSS/IMU receivers was checked. Seven GNSS/IMU receivers were used for the realization of the experiment. For six receivers the compensation angle was α = 30°, while for one receiver, the compensation angle was α = 45°. The standard uncertainty of GNSS coordinates of the antenna phase center has values less than 9 mm. The standard uncertainty of the IMU component has values less than 31 mm. The measurement uncertainty of the position of the used GNSS receivers is in the range of 18.1 mm to 31.7 mm. The limit values for the differences along the coordinate axes x and y were determined, and their values are from 26 mm to 44 mm. In the conducted experiment, it was confirmed that three GNSS/IMU receivers have a “Satisfactory” result. The results show that GNSS/IMU measurements with a slope greater than 30° significantly affect the accuracy and reliability of GNSS/IMU technology. A slope greater than 45° has a deviation along the coordinate axes of 121.3 mm. The conducted research is particularly important for geodetic works that require high positioning performance. The testing method of the GNSS/IMU receiver presented in this paper can help its users to make correct conclusions regarding the coordinate accuracy of the measured point of interest.

show abstract

Global navigation satellite systems’ receivers in mountain running: the elevation problem

Szot,

Sontowski

2023

Sports Eng

View full text Add to dashboard Cite

The popularity of sports and recreational receivers of the global navigation satellite systems is steadily increasing and provides athletes, coaches, and scientists with a wealth of information on movement occurring both horizontally and vertically. Under mountainous conditions, considering the effort put in by the athlete as well as their safety, the elevation parameter appears to be particularly relevant. The aim of the study was to propose a methodology for assessing sports receivers in terms of their determination of the elevation component based on digital elevation models while paying attention to the appropriate measures for testing these devices. The methodology was applied for wrist-worn global navigation satellite systems’ receivers used by the participants of an uphill running event. In terms of elevation determination, the most accurate three receivers (same model) were those supported by the barometric altimeter, in which the Root Mean Square result obtained ranged from 3.6 to 4.1 m. The majority of receivers underestimated the total elevation gain, the mean value of which was −3.8%, which does not appear to be affected by the reception of two global navigation satellite systems or the use of a barometric altimeter. The error characteristics were common within the group of receivers of a particular manufacturer.

show abstract

Selected aspects of testing the positioning accuracy of GNSS receivers used in sports and recreation by dynamic measurements

Cited by 4 publications

References 21 publications

Testing GNSS receiver accuracy in Samsung Galaxy series mobile phones at a sports stadium

Testing GNSS receiver accuracy in Samsung Galaxy series mobile phones at a sports stadium

Practical Limitations of Using the Tilt Compensation Function of the GNSS/IMU Receiver

Global navigation satellite systems’ receivers in mountain running: the elevation problem

Contact Info

Product

Resources

About