Αντικείμενο της μεταπτυχιακής εργασίας είναι η αξιολόγηση του αμφίδρομου μετασχηματισμού των συντεταγμένων μεταξύ του Γεωδαιτικού Συστήματος Αναφοράς του HEPOS (HTRS07) και του ΕΓΣΑ΄87, και η διερεύνηση του σχηματισμού των καννάβων διόρθωσης. Η εφαρμογή πραγματοποιείται στο βορειοανατολικό τμήμα του Κορινθιακού κόλπου. Πραγματοποιείται η επιλογή των τριγωνομετρικών σημείων για την αξιολόγηση του αμφιδρόμου μετασχηματισμού, και παρουσιάζεται ο τρόπος συλλογής των δεδομένων (εργασίες υπαίθρου), καθώς και τα διάφορα προβλήματα που αντιμετωπίστηκαν κατά την διάρκεια των μετρήσεων. Παρουσιάζεται η διαδικασία επίλυσης των βάσεων για τον προσδιορισμό των συντεταγμένων των 29 τριγωνομετρικών σημείων της περιοχής μελέτης, τόσο με τη χρήση του προγράμματος TGO, όσο και με τον αμφίδρομο μετασχηματισμό του Κτηματολογίου.The subject of the master thesis is the evaluation of the coordinates transformation between HTRS07 and GGRS87. The implementation is carried out in the north-eastern part of the Corinthian Gulf. The master thesis consists of the following chapters: In the first chapter presents the general characteristics of the Hellenic Positioning System- HEPOS with extensive reference to network techniques of resolution as well as to the selection criteria of the most optimal technique for each implementation. The new Reference System of HEPOS (HTRS07) is described and the procedure of the determination of the bidirectional transformation HTRS07 < > GGRS87 is given with the uncertainty that it may be provided with. In the second chapter the selection of the triangulation points is accomplished in order to evaluate the bidirectional transformation and the methods of data collection (field work) as well as the problems that were encountered during the measurements are presented. In the third chapter presents the solving procedure of the baseline in order to determine the coordinates of 29 triangulation points of the area of study both by the use of the TGO program and the transformation of the Cadastrale.
The subject of the master thesis is the evaluation of the coordinates transformation between HTRS07 and GGRS87. The implementation is carried out in the north-eastern part of the Corinthian Gulf. The master thesis consists of the following chapters: In the first chapter presents the general characteristics of the Hellenic Positioning System- HEPOS with extensive reference to network techniques of resolution as well as to the selection criteria of the most optimal technique for each implementation. The new Reference System of HEPOS (HTRS07) is described and the procedure of the determination of the bidirectional transformation HTRS07 < > GGRS87 is given with the uncertainty that it may be provided with. In the second chapter the selection of the triangulation points is accomplished in order to evaluate the bidirectional transformation and the methods of data collection (field work) as well as the problems that were encountered during the measurements are presented. In the third chapter presents the solving procedure of the baseline in order to determine the coordinates of 29 triangulation points of the area of study both by the use of the TGO program and the transformation of the Cadastrale.