Calculation of optimal values of measured lenghts for accurate determination of small segments
Journal Title: Геодезія, картографія і аерофотознімання - Year 2014, Vol 79, Issue 1
Abstract
The paper considers a method of minimizing error when the linear values are determined by measured distances and angles by device that is located not directly ahead of determined intervals. The formula is given for choosing the optimal distance and angles to determined objects. The optimal distances and angles are depended on the defined linear segments and the accuracy of the measured distances and angles to determined objects. As can be seen from the analysis of the determination of the formulas accuracy of determined segments are several times (from 5 to 25 times) higher than the precision of measurements, which define these segments. The graphs of accuracy of defined segments by the accuracy of the measured distances and angles are also given. The proposed method can be used to calculate the accuracy of the previous determination of small segments when using the devices for measuring linear and angular values of specified accuracy. Measurement of small segments with high accuracy requires special instruments or devices. For example, to determine the length of the meter and decimeter ranges of leveling rods, that are used in II, III and IV leveling classes, one need to have control meter or special comparator. Using the proposed method it is possible to compare above mentioned rods using electronic total stations. The proposed method can also measure the phase section of exemplary basis, create a reference base for angular measurements, installing equipment in project position, observe deformations of buildings and equipment as well as numerous other engineering tasks.
Authors and Affiliations
V . Lityn`skyi, М Fys, I. Pokotylo, S. V. Litynskyi
Keywords
Related Articles
- EP ID EP485664
- DOI -
- Views 112
- Downloads 0
On the use of the set of geodetic networks for the surveying of land boundaries
Aim. Development of land use on land allocation in settlements of Ukraine is the most common and popular types of work on land management. For quality of their performance in the design of the boundaries of land in urban...
Optimizing grid spacing for DEM construction in determining the surface volume of the Antarctic coast island glaciers
Aim. Glaciological, geodetic and photogrammetric methods can be distinguished between methods of obtaining data for observations of glaciers. Photogrammetric method refers to the remote sensing methods, so its applicatio...
About the least-squares method, adapted to the Pearson-Jeffreys law of errors
Introduction. K.F. Gausse creates the classical least-square method (LSM) based on the hypothesis of normality of the observation errors. However this hypothesis, as a rule, is uncapable, if the number of the numerous in...
Determination of the mass graves of World War II using GIS technology
Aim of the work is determined graphically visualize historical data fragment of territory-based regiment of Yakutsk, is located in Kremenets of Ternopil region in the first half of the twentieth century on modern maps. W...
Elevation mask and type of receiver effects on points positioning accuracy
The main goal of our research was to investigate the influence of the elevation mask, vectors length, GNSS receivers type (single or dual frequency), and observation duration on positioning accuracy in satellite geodetic...