Comparative analysis of real-time kinematic and PPP techniques in dynamic environment

Alkan, Reha Metin; Erol, Serdar; İlçi, Veli; Ozulu, I. Murat

doi:10.1016/j.measurement.2020.107995

Cited by 30 publications

(17 citation statements)

References 18 publications

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“…The advantages of this approach are that ZTD can be estimated in real time [41] and that GPS data are available under all weather conditions. Furthermore, recently data collected with smartphones GPS receivers have been processed using PPP [42,43].…”

Section: Discussionmentioning

confidence: 99%

Determination of Air Urban Heat Island Parameters with High-Precision GPS Data

et al. 2022

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The urban heat island (UHI) effect can contribute to extreme heat exposure. This can be detrimental to human health. In this paper, we propose a method to estimate air temperature to evaluate the spatial distribution and to monitor the intensity of the air urban heat island (AUHI) from existing GPS infrastructure. The proposed algorithm is based on the relationship between the refractivity of the troposphere and environmental variables, as well as the relationships between the zenith tropospheric delay (ZTD), a by-product of the precise point positioning technique, and the refractivity of the troposphere. The advantage of GPS data is its high temporal resolution and the availability of embedded GPS receivers. In this paper, GPS-derived ZTD data from stations in the Hong Kong Special Administrative Region (HKSAR) of China and Tokyo in Japan are processed to estimate the hourly AUHI intensity. The results derived from this technique are validated using meteorological data in the same cities. Mean absolute error values of 0.79 °C in Hong Kong and 0.22 °C in Tokyo are found from data from the summer. Moreover, an overall accuracy of 0.51 °C is found.

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Section: Discussionmentioning

confidence: 99%

Determination of Air Urban Heat Island Parameters with High-Precision GPS Data

et al. 2022

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“…This system is installed in coastal areas to measure vertical land motions and real-time kinematic (RTK) corrections. The RTK positioning given by a single GNSS receiver only outputs an accuracy from a few centimeters up to 0.1 m near a base station [ 24 ]. Actual coordinates within a localized reference frame are delivered via high-precision GNSS positioning [ 25 ].…”

Section: Methodsmentioning

confidence: 99%

Methodology for the remote transfer of GPS receiver station data through a GSM network

Othman¹,

Salama

Hamed

2021

Heliyon

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“…Reha Metin Alkan et al [5] evaluated the positioning performance of Trimble RTX RT-PPP through single baseline RTK real-time relative positioning and network RTK in Obruk Lake, Türkiye. The results show that although the network RTK method provides the best positioning performance, most of the time cannot be located due to the loss of cellular network connection.…”

Section: Introductionmentioning

confidence: 99%

“…The convergence time of the GPS-only postmission solution is about 15 minutes, and the positioning accuracy after convergence on the ENU directional component ranges from -10 cm to 6 cm, -2 cm to 9 cm, and -13 cm to 22 cm, respectively. This article uses the root mean square error (RMSE) as the positioning accuracy assessment index[5]. Equation (1) represents the root mean square of a twodimensional positioning error, and Equation (2) represents the root mean square of a three-dimensional positioning error.…”

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confidence: 99%