Reports on Geodesy and Geoinformatics最新文献_第10页

A Comparative Study of Precise Point Positioning (PPP) Accuracy Using Online Services 基于在线服务的精确点定位(PPP)精度比较研究

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Reports on Geodesy and Geoinformatics Pub Date : 2016-12-01 DOI: 10.1515/rgg-2016-0025

M. Malinowski, J. Kwiecień

{"title":"A Comparative Study of Precise Point Positioning (PPP) Accuracy Using Online Services","authors":"M. Malinowski, J. Kwiecień","doi":"10.1515/rgg-2016-0025","DOIUrl":"https://doi.org/10.1515/rgg-2016-0025","url":null,"abstract":"Abstract Precise Point Positioning (PPP) is a technique used to determine the position of receiver antenna without communication with the reference station. It may be an alternative solution to differential measurements, where maintaining a connection with a single RTK station or a regional network of reference stations RTN is necessary. This situation is especially common in areas with poorly developed infrastructure of ground stations. A lot of research conducted so far on the use of the PPP technique has been concerned about the development of entire day observation sessions. However, this paper presents the results of a comparative analysis of accuracy of absolute determination of position from observations which last between 1 to 7 hours with the use of four permanent services which execute calculations with PPP technique such as: Automatic Precise Positioning Service (APPS), Canadian Spatial Reference System Precise Point Positioning (CSRS-PPP), GNSS Analysis and Positioning Software (GAPS) and magicPPP - Precise Point Positioning Solution (magicGNSS). On the basis of acquired results of measurements, it can be concluded that at least two-hour long measurements allow acquiring an absolute position with an accuracy of 2-4 cm. An evaluation of the impact on the accuracy of simultaneous positioning of three points test network on the change of the horizontal distance and the relative height difference between measured triangle vertices was also conducted. Distances and relative height differences between points of the triangular test network measured with a laser station Leica TDRA6000 were adopted as references. The analyses of results show that at least two hours long measurement sessions can be used to determine the horizontal distance or the difference in height with an accuracy of 1-2 cm. Rapid products employed in calculations conducted with PPP technique reached the accuracy of determining coordinates on a close level as in elaborations which employ Final products.","PeriodicalId":42010,"journal":{"name":"Reports on Geodesy and Geoinformatics","volume":null,"pages":null},"PeriodicalIF":0.7,"publicationDate":"2016-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"75344710","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 16

Verification of the Polish Geodetic Reference Frame by Means of a New Solution Based on Permanent GNSS Data from the Years 2011-2014 基于2011-2014年永久GNSS数据的波兰大地测量参考系新解验证

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Reports on Geodesy and Geoinformatics Pub Date : 2016-12-01 DOI: 10.1515/rgg-2016-0027

T. Liwosz, M. Ryczywolski

{"title":"Verification of the Polish Geodetic Reference Frame by Means of a New Solution Based on Permanent GNSS Data from the Years 2011-2014","authors":"T. Liwosz, M. Ryczywolski","doi":"10.1515/rgg-2016-0027","DOIUrl":"https://doi.org/10.1515/rgg-2016-0027","url":null,"abstract":"Abstract The new solution for the Polish geodetic primary GNSS network was created to verify the currently used reference frame (PL-ETRF2000). The new solution is based on more GNSS data (more daily observation sessions included, a longer data timespan, GLONASS observations added) which were processed in a newer reference frame (IGb08) according to up-to-date methodology and using the latest version of Bernese GNSS Software. The new long-term solution (spanning 3.7 years) was aligned to the IGb08 reference frame using a minimum constraints approach. We categorized Polish reference stations into two categories according to their data length. We obtained good agreement of the new solution with the PL-ETRF2000: for most stations position differences did not exceed 5 mm in horizontal, and 10 mm in vertical components. However, for 30 stations we observed discontinuities in position time series, mostly due to GNSS equipment changes, which occured after the introduction of PL-ETRF2000. Position changes due to the discontinuities reached 9.1 mm in horizontal components, and 26.9 mm in vertical components. The new solution takes into account position discontinuities, and in addition also includes six new stations which were installed after the introduction of the PL-ETRF2000. Therefore, we propose to update the currently-used reference frame for the Polish geodetic primary network (PL-ETRF2000) with the new solution. The new solution was also accepted by the EUREF Technical Working Group as a class A solution (highest accuracy) according to EUREF standards.","PeriodicalId":42010,"journal":{"name":"Reports on Geodesy and Geoinformatics","volume":null,"pages":null},"PeriodicalIF":0.7,"publicationDate":"2016-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"79354765","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 3

Proposals for Changes in Surveying-Legal Procedures for the Needs of Cadastre in Poland 波兰地籍测量法律程序变更建议

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Reports on Geodesy and Geoinformatics Pub Date : 2016-12-01 DOI: 10.1515/rgg-2016-0028

M. Mika

{"title":"Proposals for Changes in Surveying-Legal Procedures for the Needs of Cadastre in Poland","authors":"M. Mika","doi":"10.1515/rgg-2016-0028","DOIUrl":"https://doi.org/10.1515/rgg-2016-0028","url":null,"abstract":"Abstract The aim of this paper is to present the need for changes of geodetic-legal procedures for the cadastre and real estate management. This problem was analyzed both in theoretical and practical terms. In order to better present the analyzed technical and legal procedures, a study of several cases of surveying documentation was made. On their example the problems associated with the surveying services were shows and the formal and legal procedures, on the basis of which described surveying works were done were verified. The problem presented is current and valid not only for the comfort of the surveyor's work, but also from the point of view of the structure and modernization of the real estate cadastre, constituting the backbone of the real estate management. The article emphasized the need to unify the databases of state registers and the digitization of the National Geodetic and Cartographic Resources (PZDGiK). Research has shown that despite the continuous changes of legislation, there are still many shortcomings and gaps, which often complicate the surveying works. The surveyor must analyze and verify all materials he uses, including those obtained from the Centre of Geodetic and Cartographic Documentation (ODGiK). The quality of the geodetic and cartographic elaboration depends largely on the work of the Centre of Geodetic and Cartographic Documentation. The need of modernization of the Land and Buildings Registry, which acts as a cadastre in Poland, has been demonstrated. Furthermore, the unification of data used as reference systems both for plane coordinates and elevation has been proposed.","PeriodicalId":42010,"journal":{"name":"Reports on Geodesy and Geoinformatics","volume":null,"pages":null},"PeriodicalIF":0.7,"publicationDate":"2016-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"90326754","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 23

The Problem of the Instrument Stabilization During Hydrographic Measurements 水文测量中仪器的稳定问题

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Reports on Geodesy and Geoinformatics Pub Date : 2016-06-01 DOI: 10.1515/rgg-2016-0006

A. Felski, K. Naus, M. Wąż

引用次数: 3

Photogrammetry at the Warsaw University of Technology – Past and Present 华沙理工大学摄影测量学——过去与现在

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Reports on Geodesy and Geoinformatics Pub Date : 2016-06-01 DOI: 10.1515/rgg-2016-0015

D. Zawieska, Z. Kurczynski

引用次数: 0

Elements of an algorithm for optimizing a parameter-structural neural network 参数结构神经网络优化算法的基本原理

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Reports on Geodesy and Geoinformatics Pub Date : 2016-06-01 DOI: 10.1515/rgg-2016-0019

M. Mrówczyńska

引用次数: 3

25 Years of Reports on Geodesy and Geoinformatics 25年的大地测量学和地理信息学报告

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Reports on Geodesy and Geoinformatics Pub Date : 2016-06-01 DOI: 10.1515/rgg-2016-0002

Jadwiga Siemiątkowska

{"title":"25 Years of Reports on Geodesy and Geoinformatics","authors":"Jadwiga Siemiątkowska","doi":"10.1515/rgg-2016-0002","DOIUrl":"https://doi.org/10.1515/rgg-2016-0002","url":null,"abstract":"Abstract The article presents an outline of the 25-year history of the journal “Reports on Geodesy and Geoinformatics”. The source of information was mainly the journal issues themselves. Attention was drawn to changes that the journal underwent over a quarter of a century and its relationship with the Institute of Geodesy and Geodetic Astronomy and later the Department of Geodesy and Geodetic Astronomy. Many issues were dedicated to materials from Polish conferences - those organised by the Institute and the international ones attended by the employees of the Institute, which was indicated in the section on the history of the journal. The second part of the article concerns the current activity and importance of the journal. Attention was paid to visibility of “Reports on Geodesy and Geoinformatics” in the domestic and foreign databases. Polish databases where the journal is indexed have been identified and briefly described. A separate issue is the evaluation of the journal, which forms a measure of its popularity among consumers. For this purpose, various parameters and biometrics indicators are used. The article used the Web of Science, Google Scholar and the Ministerial List databases for the assessment of the journal.","PeriodicalId":42010,"journal":{"name":"Reports on Geodesy and Geoinformatics","volume":null,"pages":null},"PeriodicalIF":0.7,"publicationDate":"2016-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"73737669","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Assessment of continental hydrosphere loading using GNSS measurements 利用全球导航卫星系统测量评估大陆水圈负荷

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Reports on Geodesy and Geoinformatics Pub Date : 2016-06-01 DOI: 10.1515/rgg-2016-0020

M. Zygmunt, M. Rajner, T. Liwosz

{"title":"Assessment of continental hydrosphere loading using GNSS measurements","authors":"M. Zygmunt, M. Rajner, T. Liwosz","doi":"10.1515/rgg-2016-0020","DOIUrl":"https://doi.org/10.1515/rgg-2016-0020","url":null,"abstract":"Abstract Presented paper is dedicated to problems of deformation of the Earth's crust as a response to the surface loading caused by continental waters. The aim of this study was to specify areas particularly vulnerable to studied deformation and to compare calculated and observed displacements. Information of the continental water volume was taken from the WaterGAP Global Hydrological Model. Calculated values of the deformations were verified with the results obtained with programs SPOTL and grat. Vertical deformations were almost 10 times higher than the deformation in the horizontal plane, for which reason later part of the paper focuses on the former. In order to check agreement of the calculated and observed deformation 23 stations of International GNSS Service (IGS) were selected and divided into three groups (inland, near the shoreline and islands). Before comparison outliers and discontinuities were removed from GNSS observations. Modelled and observed signals were centred. The analysed time series of the vertical displacements showed that only for the inland stations it is possible to effectively remove displacements caused by mass transfer in the hydrosphere. For stations located in the coastal regions or islands, it is necessary to consider additional movement effects resulting from indirect ocean tidal loading or atmosphere loading.","PeriodicalId":42010,"journal":{"name":"Reports on Geodesy and Geoinformatics","volume":null,"pages":null},"PeriodicalIF":0.7,"publicationDate":"2016-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"81150147","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 4

Research and Development Work Carried out by the Chair of Engineering Geodesy and Measurement and Control Systems, Faculty of Geodesy and Cartography WUT – Thematic Scope and Achievements 武汉理工大学测量与制图学院工程测量与测控系统系主任的研究与发展工作——专题范围与成果

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Reports on Geodesy and Geoinformatics Pub Date : 2016-06-01 DOI: 10.1515/rgg-2016-0014

E. Nowak, R. Malarski, W. Prószyński, Alicja Sadowska, M. Woźniak, J. Zaczek-Peplinska

引用次数: 0

Towards Reliable Velocities of Permanent GNSS Stations 迈向永久GNSS站的可靠速度

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Reports on Geodesy and Geoinformatics Pub Date : 2016-06-01 DOI: 10.1515/rgg-2016-0003

J. Bogusz, A. Klos, M. Gruszczyńska, M. Gruszczyński

引用次数: 1