Evaluation of the Accuracy of Determining the Coordinates of Deformation Marks and the Distances Between Them

Authors:  
Rubric:     Theoretical and experimental studies   
Key words: assessment of accuracy, deformation mark, buildings of objects of cultural heritage, evaluation of deformations, distances between deformation marks
Annotation:
The article is presented an estimate of the accuracy of determining the coordinates using the polar spatial intersection. When implementing such resection using electronic tachometers, the coordinates of the deformation marks are interdependent. The most complete form that characterizes the accuracy and interdependence of random variables is the correlation (covariance) matrix. The coefficients of the matrix , included in the formula for calculating the covariance matrix were calculated. Since the evaluation of deformations is assumed using invariant parameters - the distances between the deformation marks, the accuracy of determining the distance between the deformation marks was evaluated.