Vestnik SSUGT (Siberian State University of Geosystems and Technologies)最新文献_第10页

INFLUENCE OF THE CURVATURE OF RADIO-SIGNAL TRAJECTORY IN NEUTROSPHERE ON THE RADIAL VELOCITY OF SATELLITE 中气层无线电信号轨迹曲率对卫星视向速度的影响

Vestnik SSUGT (Siberian State University of Geosystems and Technologies) Pub Date : 1900-01-01 DOI: 10.33764/2411-1759-2022-27-1-15-21

V. Dudarev

{"title":"INFLUENCE OF THE CURVATURE OF RADIO-SIGNAL TRAJECTORY IN NEUTROSPHERE ON THE RADIAL VELOCITY OF SATELLITE","authors":"V. Dudarev","doi":"10.33764/2411-1759-2022-27-1-15-21","DOIUrl":"https://doi.org/10.33764/2411-1759-2022-27-1-15-21","url":null,"abstract":"The article considers the effect of refraction of the Earth's atmosphere on the radial velocity of the satellite, determined by the results of unsolicited differential Doppler trajectory measurements. The aim of the study is to conduct a comparative analysis of errors in the results of these measure-ments caused by the influence of neutrosphere refraction with errors caused by the hardware accu-racy of modern Doppler receivers. To achieve this aim, formulas were obtained that allowed for var-ious zenith distances to estimate perturbations of the satellite's radial velocity caused by the curva-ture of the trajectory of electromagnetic oscillation propagation in the Earth's neutrosphere. For this assessment, an approximation model developed earlier by the author was also used, which allows determining the length of a curved section of the trajectory of an electromagnetic oscillation in the neutrosphere. In addition, according to the formulas obtained in the work, the absolute errors of measuring the difference frequency and the radial velocity due to the error of counting the number of cycles of the difference frequency by Doppler receivers were estimated. Based on the analysis of the experimental data obtained, the conclusion is made: at the stage of mathematical processing of the results of unsolicited differential Doppler trajectory measurements of satellites, it is necessary to take into account the perturbations of its radial velocity caused by the curvature of the trajectory of the radio signal propagation in the Earth's neutrosphere.","PeriodicalId":152770,"journal":{"name":"Vestnik SSUGT (Siberian State University of Geosystems and Technologies)","volume":"55 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129345710","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

ORGANIZATIONAL AND ECONOMIC FEATURES OF THE ARCTIC PROJECTS IN THE CONTEXT OF THE ASSETS SPECIFICITY 资产专用性背景下北极项目的组织和经济特征

Vestnik SSUGT (Siberian State University of Geosystems and Technologies) Pub Date : 1900-01-01 DOI: 10.33764/2411-1759-2019-24-4-276-285

V. Kryukov, Y. Kryukov

引用次数: 0

EXPERIMENTAL STUDIES OF GEODETIC MONITORING ACCURACY OF UPPER SURFACE OF ENGINEERING OBJECTS AND CONSTRUCTIONS 工程对象及构筑物上表面大地测量监测精度的实验研究

Vestnik SSUGT (Siberian State University of Geosystems and Technologies) Pub Date : 1900-01-01 DOI: 10.33764/2411-1759-2021-26-2-18-27

I. Knol

引用次数: 1

Forecasting high road embankment settlements based on machine learning and geodetic measurement data 基于机器学习和大地测量数据的高路堤沉降预测

Vestnik SSUGT (Siberian State University of Geosystems and Technologies) Pub Date : 1900-01-01 DOI: 10.33764/2411-1759-2022-27-5-19-29

D. R. Bashirova, M. Bryn, D. Krivonosov

{"title":"Forecasting high road embankment settlements based on machine learning and geodetic measurement data","authors":"D. R. Bashirova, M. Bryn, D. Krivonosov","doi":"10.33764/2411-1759-2022-27-5-19-29","DOIUrl":"https://doi.org/10.33764/2411-1759-2022-27-5-19-29","url":null,"abstract":"The paper describes the research on forecasting of road base settlements on high embankments by means of geodetic observations, and also considers the question of geodetic data representation in the form of a mathematical model which takes into account the laws of settlements development and also allows to reveal upward or downward trends of the observed deformations. The relevance and novelty of the research is that there are no requirements for making forecast models by the geodetic observation data. Whereas it is noted that building of such models is important for rational planning of repair works and more accurate determination of geodetic observations periodicity. The aim of the study is to develop a method of geodetic monitoring of foundation settlements on high embankments. The following machine learning methods were considered: linear regression, adaptive linear regression, exponential smoothing, support vectors, and random forest. After models were trained and their parameters were chosen, the forecast on a test set was carried out. The parameters that characterized the quality of the models were: root mean square error, mean absolute error percentage, mean error percentage, determination coefficient, and Theil's coefficient of variance. Minimal value of root mean squared error RMSE = 0,8 mm was obtained by the method of support vectors. The support vectors method showed the highest forecast accuracy when taking into account all indicators of model quality assessment.","PeriodicalId":152770,"journal":{"name":"Vestnik SSUGT (Siberian State University of Geosystems and Technologies)","volume":"5 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125577457","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

Application of terrestrial laser scanning technology for creating record drawings of building facades 地面激光扫描技术在建筑立面记录图制作中的应用

Vestnik SSUGT (Siberian State University of Geosystems and Technologies) Pub Date : 1900-01-01 DOI: 10.33764/2411-1759-2022-27-3-5-18

M. Altyntsev

{"title":"Application of terrestrial laser scanning technology for creating record drawings of building facades","authors":"M. Altyntsev","doi":"10.33764/2411-1759-2022-27-3-5-18","DOIUrl":"https://doi.org/10.33764/2411-1759-2022-27-3-5-18","url":null,"abstract":"The technology of terrestrial laser scanning allows solving a large range of measurement tasks, among which the creation of record drawings for building facades can be distinguished separately. The main advantage of laser scanning over other surveying methods is the high speed of data acquisition and their density, which allows displaying even small parts of the facade in the drawing. To reliably deter-mine the details of which size can be identified from laser scanning data, and what maximum scale of the drawing can eventually be created, it is necessary to conduct studies of the accuracy and detail of the data of each laser scanner planned for use. The data of the Leica ScanStation 2 and Geomax Zoom 300 were analyzed. As a result of analysis, it was found that the divergence of Zoom 300 laser beam exceeds the value stated in the technical characteristics. It is shown that the scanner ScanStation 2 al-lows creating measuring drawings up to the scale of 1:50, and Zoom 300 – up to 1:200. To achieve the accuracy of creating a 1:200 scale drawing using the Zoom 300 scanner, a number of recommenda-tions for placing scanner positions and processing the obtained point cloud to remove measurements made with lower accuracy are offered.","PeriodicalId":152770,"journal":{"name":"Vestnik SSUGT (Siberian State University of Geosystems and Technologies)","volume":"161 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124345764","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

DEFORMATION AND STRESS ANALYSIS OF VERTICAL STEEL SHELL OF TANKS BASED ON LASER SCANNING DATA 基于激光扫描数据的储罐垂直钢壳变形与应力分析

Vestnik SSUGT (Siberian State University of Geosystems and Technologies) Pub Date : 1900-01-01 DOI: 10.33764/2411-1759-2022-27-2-86-101

Andrei A. Sholomitsky, Nurgan T. Kemerbaev, Sergei G. Mogilny, Sergei N. Tsarenko

{"title":"DEFORMATION AND STRESS ANALYSIS OF VERTICAL STEEL SHELL OF TANKS BASED ON LASER SCANNING DATA","authors":"Andrei A. Sholomitsky, Nurgan T. Kemerbaev, Sergei G. Mogilny, Sergei N. Tsarenko","doi":"10.33764/2411-1759-2022-27-2-86-101","DOIUrl":"https://doi.org/10.33764/2411-1759-2022-27-2-86-101","url":null,"abstract":"The article considers a new technology of measurements of vertical steel tanks (ground-based laser scanning), which delivers a huge volume of unstructured information. There has been carried out a review of existing methods for solving tasks of tank walls' defomations determinations on laser reflec-tion point cloud. It is noted that the accuracy of laser scanning and scans' stitching is sufficient for tank walls' defomations determinations. The existing methods are implemented basically through building irregular triangular surfaces of tank shell on which then surface profiles are built manually or semi-automatically and the defomations are determined and compared to tolerance values. The au-thors suggest a method and algorithm for processing laser reflection point cloud, which by means of several infiltrations by height, radius tolerance and inclinations and interpolation by collocation meth-od is drawn to a rectangular topologically equivalent grid. These allow by several orders to decrease the information volume stored in the database, and regular grid model structure allows to apply numer-ical calculation method for calculating strains occurring in the tank walls. The strains are determined on semi-momentless theory for cylinder shell calculation. The method and algorithm are implemented in geodetic subsystem of automatic system of technical maintenance and repairs of equipment on the oil processing plant. The suggested method will allow in the future to move from normative assess-ment of technical tank state to the assessment on actual strains, which gives objective assessment of tank state for making substantiated decision on the prolongation of its exploitation, current mainte-nance and repair.","PeriodicalId":152770,"journal":{"name":"Vestnik SSUGT (Siberian State University of Geosystems and Technologies)","volume":"38 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123674519","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

LEGAL AND GEOINFORMATIONAL ASPECTS OF PUBLIC EASEMENTS IN THE RUSSIAN FEDERATION 俄罗斯联邦公共地役权的法律和地理信息方面

Vestnik SSUGT (Siberian State University of Geosystems and Technologies) Pub Date : 1900-01-01 DOI: 10.33764/2411-1759-2019-24-2-183-197

D. Parkhomenko, Elena A. Predtechynskaya

引用次数: 1

STUDY OF THE ACCURACY OF MODEL CONSTRUCTION BY SIFT ALGORYITHM FOR LARGE SPAN STRUCTURES 基于sift算法的大跨度结构模型构建精度研究

Vestnik SSUGT (Siberian State University of Geosystems and Technologies) Pub Date : 1900-01-01 DOI: 10.33764/2411-1759-2021-26-3-44-57

A. Sholomitskii, Bakhtiyor N. Akhmedov, Tatiana M. Medvedskaya

{"title":"STUDY OF THE ACCURACY OF MODEL CONSTRUCTION BY SIFT ALGORYITHM FOR LARGE SPAN STRUCTURES","authors":"A. Sholomitskii, Bakhtiyor N. Akhmedov, Tatiana M. Medvedskaya","doi":"10.33764/2411-1759-2021-26-3-44-57","DOIUrl":"https://doi.org/10.33764/2411-1759-2021-26-3-44-57","url":null,"abstract":"The article considers the accuracy of floor models creation in large span structures with the use of unmanned aerial vehicles for the purpose of determining their deformations. There were performed 4 aero shootings of Water Sports Palace in Dushambe, which were processed by SIFT algorithm. Syn-chronically with the UAV shooting there was performed the measurements on deformation marks within the frames of geodetic monitoring. There was performed the statistical analysis of models accu-racy by method of interpolation of spherical function, which showed that 80% of points has devia-tions less than 30 mm, and the rest 20% has deviations up to 80 mm. The use of collocation method for smoothing optimal filtering allowed to decrease the differences between settlement surfaces ob-tained by geodetic measurement and UAV shooting up to 26mm., which is 10 % of acceptable devia-tions of this object. It was found out that there is a necessity of further investigations of SIFT algo-rithm and filtering its results for the purpose of increasing the accuracy of object’s models.","PeriodicalId":152770,"journal":{"name":"Vestnik SSUGT (Siberian State University of Geosystems and Technologies)","volume":"43 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123292216","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

The infrastructure concept for a single geo-information centre for forest management (part 1) 森林管理单一地理信息中心的基础设施概念(第1部分)

Vestnik SSUGT (Siberian State University of Geosystems and Technologies) Pub Date : 1900-01-01 DOI: 10.33764/2411-1759-2022-27-3-50-61

M. Vagizov, A. M. Zayats

{"title":"The infrastructure concept for a single geo-information centre for forest management (part 1)","authors":"M. Vagizov, A. M. Zayats","doi":"10.33764/2411-1759-2022-27-3-50-61","DOIUrl":"https://doi.org/10.33764/2411-1759-2022-27-3-50-61","url":null,"abstract":"The article offers the concept of a single specialized complex for management, data analysis and peri-odic monitoring of the forestry fund spatial data of the Russian Federation based on centralized server architecture of geoinformation centre and innovative information technologies. The objective of the study is to improve the quality of management, updating and periodic monitoring of spatial data on the forest fund of the Russian Federation. As research methods, a server-side strategy for the develop-ment of a geoinformation centre and the organization infrastructure of the main types of geospatial data used in forestry are proposed. To implement the development, the methodological substatiation for the application of the proposed conceptual solutions in accordance with the territorial peculiarities of the organization of forestry in Russia is revealed. As a result of the research, in the first part of the article, the concept of the infrastructure of a single geoinformation center for forest management is formed, which will provide information about the forest area and integrate visualization of geospatial forestry data at different territorial levels of information representation. Well-timed provision of relia-ble forestry information will not only improve the quality of forest management, but also allow more selective forest management activities, taking into account the important ecosystem significance of forests.","PeriodicalId":152770,"journal":{"name":"Vestnik SSUGT (Siberian State University of Geosystems and Technologies)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131333885","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

IMPROVEMENT OF THE METHOD OF FAN-SHAPED TRIGONOMETRIC LEVELING 扇形三角水准法的改进

Vestnik SSUGT (Siberian State University of Geosystems and Technologies) Pub Date : 1900-01-01 DOI: 10.33764/2411-1759-2021-26-6-33-47

G. A. Ustavich, A. Nikonov, Ivan A. Mezentsev, Elena A. Oleynikova

引用次数: 1