ΣΥΜΒΟΛΗ ΣΤΗ ΜΕΛΕΤΗ ΤΗΣ ΑΚΡΙΒΕΙΑΣ ΤΩΝ ΗΛΕΚΤΡΟΜΑΓΝΗΤΙΚΩΝ ΜΕΤΡΗΣΕΩΝ ΑΠΟΣΤΑΣΕΩΝ ΜΕ ΤΗ ΒΟΗΘΕΙΑ ΣΤΑΤΙΣΤΙΚΩΝ ΜΕΘΟΔΩΝ

USING A SAMPLE OF 2360 MICROWAVE DISTANCE MEASUREMENTS AND RELATED METEOROLOGICAL MEASUREMENTS (PRESSURE, TEMPERATURE AND HUMIDITY), A STUDY WAS CARRIED OUT AIMING TO IMPROVE THE EOM ACCURACY. THE BASIC TOOL IS MULTIPLE LINEAR REGRESSION(STEPWISE METHOD) AND SEVERAL MODELS WERE EXAMINED. THE STANDARD INDEPENDENT VARIABLES OF THESE MODELS WERE THE ABOVE MENTIONED METEOROLOGICAL VARIABLES AND THE DISTANCE (GIVEN BY THE EOM INSTRUMENT). THE DEPENDENT VARIABLE WAS THE VARIATION OF REDUCED DUE REFRACTIVE INDEX DISTANCE MEASUREMENTS. THE DERIVED MODELSDO SHOW REMARKABLE ACCURACY, STABILITY AND PREDICTION CAPABILITIES. THE USE OFQUALITATIVE VARIABLES IMPROVE THE MODEL STRENGTHS RECOVERING IMPORTANT INFORMATION ABOUT TIME AND POSITION. ALSO WITH THE HELP OF SOME MODELS THE INFLUENCE OF CLOUDS, WIND VELOCITY AND WIND DIRECTION IS PASSING INTO THEM FROM DETERMINISTIC POINT OF VIEW.

Grantor dc:publisher

Aristotle University Of Thessaloniki (AUTH)

Year dc:date

1989

Authors dc:creator

• Δούκας, Ιωάννης
• Doukas, Ioannis

• Ατμοσφαιρικά μοντέλα
• Γεωδαισία
• Διάθλαση
• ΗΛΕΚΤΡΟΜΑΓΝΗΤΙΚΕΣ ΜΕΤΡΗΣΗΣ ΑΠΟΣΤΑΣΕΩΝ
• Μικροκύματα
• Μοντέλα παλινδρόμησης
• Atmospheric models
• ELECTROMAGNETIC DISTANCE MEASUREMENTS
• Geodesy
• Microwaves
• Refraction
• Regression models
• Επιστήμες Μηχανικού και Τεχνολογία
• Επιστήμη Πολιτικού Μηχανικού
• Engineering and Technology
• Civil Engineering

Language dc:language

gre

Identifier

10.12681/eadd/1042

OAI identifier oai:identifier

oai:10442/1042