Measuring Shifts Base to Calibrate Test Equipment GNSS

Abstract

abstract. This article deals with monitoring the stability of the geodetic base Skalka. Introduction of the article briefly describes the history and purpose of the geodetic base Skalka, gradually resulting in the current characteristics of the base. Main part of the article deals with monitoring the stability of points of the inner and partly outer part of the base. The result is the evaluation of performed geodetic works with the assessment of the testing base stability. Identified vertical and horizontal shifts show that the base can be considered stable in terms of both geological and geodetic points of view.

Watercourses and Their Geodetic Mapping for Water Management

“…Minimizing the risk of destruction is no less important, given that mapping requires more time in rather large localities. Last but not least, the very position of the geometric base points must be taken into account, unless GNSS technology methods are used for connecting the locality [1]. Terrain recognition should be a natural part of all surveying activities, representing a very important geodesic activity in the field.…”

“…Both these systems belong to binding reference geodesic systems of the Czech Republic, pursuant to Government Regulation No. 430/2006 Coll [1].…”

“…The static method should be preferred to RTK when determining the position of the survey network points to be used as the geometric base for detailed surveying. The main reasons include the accuracy, quality, and relevancy of the connection [1].…”

“…Corrections can be determined by comparing the measurement results and the known spatial coordinates of the reference point; subsequently, the corrections can be introduced in the calculation of the positions of the points to be determined. Corrections can be introduced in real time, through radio or other communication technologies, or when the surveying activity has been completed and processed after the survey in an adequate software-the so-called "post-processing" [1]. The relative method can provide vector determination accuracy in the order of millimeters.…”

“…In particular, the so-called multipath (multiple signal spreading) should be minimized through a sufficient distance from potentially reflective areas (water level, objects, cars in the immediate vicinity of the antenna, etc.) [1].…”