Implementing SRIF filter with MANS-PPP software package for GNSS precise point position solution accuracy enhancement

Shehata, Ashraf G.; Zarzoura, Fawzi; El-Mewafi, Mahmoud

doi:10.1515/jag-2023-0017

Cited by 3 publications

(1 citation statement)

References 13 publications

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“…CSRS estimations are computed using carrier phase or code pseudo-range measurements of single-and dualfrequency receivers. Users can upload observed data from single-or dual-frequency receivers operating in static or kinematic mode in RINEX format over the internet for further analysis (Shehata, 2023).…”

Section: Csrs-pppmentioning

confidence: 99%

Precision Evaluation for Different GNSS Rinex 3 Using Online Services and Open-Source Software PPP-Mans

Shehata,

Zarzoura,

El-Mewafi

2023

Geodesy and Cartography

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It is critical to evaluate the reliability of using free online processing software for Global Navigation Satellite System post-processing since the advancement of GNSS gives satellite navigation customers all over the world great benefits. AUSPOS, IBGE, Magic GNSS, CSRS-PPP, and open-source software are some of the online processing solutions being evaluated for accuracy in this study. GNSS observations from IGS were used to conduct field observations using RINEX 3 data from three stations, with an observation duration of 30 seconds. After data acquisition, it was processed with online and free software that made use of GPS, GPS, and GLONASS. When compared to coordinates obtained from reference stations, the relative differences and correctness of the coordinates generated by each piece of software were then evaluated. coordinates in the ITRF14 reference for the X, Y, and Z directions. Online GNSS processing services may be used with greater accuracy for engineering and geodetic applications and are simple to use without the need for GNSS data processing expertise.

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Section: Csrs-pppmentioning

confidence: 99%

Precision Evaluation for Different GNSS Rinex 3 Using Online Services and Open-Source Software PPP-Mans

Shehata,

Zarzoura,

El-Mewafi

2023

Geodesy and Cartography

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Assessing the influence of differential code bias and satellite geometry on GNSS ambiguity resolution through MANS-PPP software package

Shehata

Zarzoura

El-Mewafi

2023

Journal of Applied Geodesy

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Ambiguity resolution (AR) is essential for quick and accurate Global Navigation Satellite System GNSS location and navigation. In addition to location parameters, there are various additional GNSS characteristics that are relevant for a wide range of applications such as instrumental calibrations, atmospheric sounding, and time transfer. We offer differential code bias and satellite geometry for the GNSS estimable parameters using MANS-PPP software backage. In this research, we used the MANS-PPP software package to execute the processing method and generate the PPP GNSS solution. We demonstrated how differential code bias and satellite geometry can effectively enhance initial time and positioning error for multi-GNSS satellites. PPP Processing observation data in static mode was used by the different DCB files the Chinese Academy of Sciences (CAS), the German Aerospace Centre (DLR), and the Centre for Orbit Determination in Europe (CODE), for the 12 stations from IGS, and we analyzed the impact of errors from the satellite geometry. The results illustration that the correction of DCB significantly improves the PPP ambiguity resolution success rate and quality, which have higher DCB values. The satellite geometry also has a substantial influence on the PPP ambiguity resolution, with a better geometry leading to a higher success rate and quality. Furthermore, the use of multiple GNSS constellations and the optimization of the satellite selection and weighting algorithms can further improve the PPP ambiguity resolution and the resulting positioning accuracy.

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Advanced topographic-geodetic surveys and GNSS methodologies in urban planning

Madimarova,

Nurpeissova,

Ormambekova

et al. 2024

Journal of Applied Geodesy

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The relevance of the problem examined is the need for research to ensure the safety and efficiency of construction and operation of utility networks, in light of the rapid development and growth of urban infrastructure. The purpose of this research is to explore and evaluate the application of topographic-geodetic studies in the context of the design and construction of utilities. The methods used include analytical method, classification method, functional method, statistical method, synthesis method. At the preparatory stage of works the schedule of all stages of project implementation was developed, coordinate and height systems accepted in the territory of the settlement, topographic and geodetic materials, general plans, detailed planning plans, and schemes of settlement development were established. Executive surveys, the territory of Aksukent settlement, and other materials and documents identified in the process of preparatory works were collected and analysed. Using an unmanned aerial vehicle (UAV) data of plan-altitude substantiation and aerial photography were obtained, orthophoto map in WGS84 and MSC coordinate system of the Aksukent settlement territory was obtained. To update the data on existing points of the state geodetic network, complexes of geodetic measurements and calculations were performed and parameters (key) of transformation between WGS84 and WCS coordinate systems were obtained. In the course of the field works, deciphering work was performed based on the obtained orthophoto. The inventory of engineering networks was conducted, which included engineering-geodetic surveys of underground and surface engineering networks (sewerage, water supply, gas supply, heating mains), and engineering-geodetic surveys of overhead and underground cable power lines. The results of the survey of the traces of engineering communications on the territory of Aksukent village were agreed with the balance holders of networks JSC “Turkestan Regional Telecommunications Directorate Kazakhtelecom”, JSC “KazTransGas Aimak”, LLP “Sairam Tazalyk”, LLP “Ontustik Zharyk Transit”. The research is of practical significance, as it contributes to the accurate determination of network parameters, identification of potential problem areas and ensuring effective planning and management of engineering projects.

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Implementing SRIF filter with MANS-PPP software package for GNSS precise point position solution accuracy enhancement

Cited by 3 publications

References 13 publications

Precision Evaluation for Different GNSS Rinex 3 Using Online Services and Open-Source Software PPP-Mans

Precision Evaluation for Different GNSS Rinex 3 Using Online Services and Open-Source Software PPP-Mans

Assessing the influence of differential code bias and satellite geometry on GNSS ambiguity resolution through MANS-PPP software package

Advanced topographic-geodetic surveys and GNSS methodologies in urban planning

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