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   investigation of the accuracy of constructing digital elevation models of technogenic massifs based on satellite coordinate determinations  
   
نویسنده bryn mikhail ,mustafin murat ,bashirova dinara ,vasilev bogdan
منبع journal of mining institute - 2025 - دوره : 271 - شماره : 0 - صفحه:95 -107
چکیده    At all stages of the life cycle of buildings and structures, geodetic support is provided by electronic measuring instruments – a laser scanning system, unmanned aerial vehicles, and satellite equipment. in this context, a set of geospatial data is obtained that can be presented as a digital model. the relevance of this work is practical recommendations for constructing a local quasigeoid model and a digital elevation model (dem) of a certain accuracy. a local quasigeoid model and a dem were selected as the study objects. it is noted that a dem is often produced for vast areas, and, therefore, it is necessary to build a local quasigeoid model for such models. the task of assessing the accuracy of constructing such models is considered; its solution will allow obtaining a better approximation to real data on preassigned sets of field materials. a general algorithm for creating both dem and local quasigeoid models in the golden software surfer is presented. the constructions were accomplished using spatial interpolation methods. when building a local quasigeoid model for an area project, the following methods were used: triangulation with linear interpolation (the least value of the root mean square error (rmse) of interpolation was 0.003 m) and kriging (0.003 m). the least rmse value for determining the heights by control points for an area project was obtained using the natural neighbour (0.004 m) and kriging (0.004 m) methods. to construct a local quasigeoid model for a linear project, the following methods were applied: kriging (0.006 m) and triangulation with linear interpolation (0.006 m). construction of the digital elevation model resulted in the least aggregate value of the estimated parameters: on a flat plot of the earth’s surface – the natural neighbour method, for a mountainous plot with anthropogenic topography – the quadric kriging method, for a mountainous plot – quadric kriging.
کلیدواژه digital elevation model ,point cloud ,spatial interpolation methods ,quasigeoid ,normal height ,geodetic height ,root mean square error ,kriging ,triangulation ,natural neighbour
آدرس emperor alexander i st. petersburg state transport university, russia, empress catherine ii saint petersburg mining university, russia, ao “gazprom diagnostika”, russia, empress catherine ii saint petersburg mining university, russia
پست الکترونیکی vasilev_byu2@pers.spmi.ru
 
   исследования точности построения цифровых моделей рельефа техногенных массивов по данным спутниковых определений координат  
   
Authors брынь м. ,мустафин м. ,баширова д. ,васильев б.
  
Keywords цифровая модель рельефа، облако точек، методы пространственной интерполяции، квазигеоид، нормальная высота، геодезическая высота، средняя квадратическая погрешность، кригинг، триангуляция، естественный сосед،
 
 

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