diplomska naloga
Jan Magyar (Author), Dušan Kogoj (Mentor), Klemen Kregar (Co-mentor)

Abstract

Diplomska naloga obravnava, kako iz ljubiteljskih hidrografskih meritev pridobiti model globin zadovoljive natančnosti. Konkretno gre za meritve s sonarjem Lowrance Elite-5 HDI, ki je namenjen za ribištvo in z njim povezane dejavnosti, s katerim je bilo posneto dno Blejskega jezera. Opisan je potek in način merjenja, uporabljen instrumentarij, obdelava podatkov ter različni grafični prikazi rezultata. Naloga se bolj podrobno dotakne načina interpolacije obdelanih meritev. Kako z določenimi funkcijami izvedemo ter izboljšamo interpolacijo meritev in z matričnim filtrom odstranimo grobe pogreške. Pomemben je tudi grafični vklop v obstoječe informacijske sisteme, kot je DOF 2011 (digitalni ortofoto). Za to je potrebna pravilna transformacija meritev v pravi koordinatni sistem. Kot rezultat dobimo model globin Blejskega jezera v različnih grafičnih prikazih. Izvede se tudi primerjava z obstoječimi podatki, ki so rezultat profesionalnih hidrografskih meritev. Tako dobimo primerjavo modela z obstoječimi podatki in lahko ocenimo natančnost dobljenega modela.

Keywords

geodezija;diplomska naloga;UNI;GIG;hidrografske meritve;model globin;interpolacija;meritve globin;sonar;

Data

Language: Slovenian
Year of publishing:
Typology: 2.11 - Undergraduate Thesis
Organization: UL FGG - Faculty of Civil and Geodetic Engineering
Publisher: [J. Magyar]
UDC: 528.47(497.12 Bled)(043.2)
COBISS: 8188769 Link will open in a new window
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Downloads: 531
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Other data

Secondary language: English
Secondary title: Creation of a metric display of the bottom of the Lake Bled on the basis of Lowrance Elite-5 HDI sonar data recording
Secondary abstract: This thesis deals with, how to get a model of heights with decent accuracy, from amateur hydrographic survey. Specifically measurements with Lawrance Elite-5 HDI sonar that is meant for fishing and other fishing activities, with which the bottom of the Lake Bled was measured. The course and method of measurements, use of instruments, processing of data and different graphical displays of results are described. More in depth the thesis is dealing with interpolation of processed data. How, with a different functions, one can execute and improve interpolations of measurements and get rid of the gross errors with matrix filter. Also important is graphical configuration with other informational systems like DOF 2011 (digital orthophoto). For that we need correct transformation of measurements in the right coordinate system. As a result we get a model of depth of Lake Bled in different graphical displays. We also do a comparison with a professionally made model, so we can evaluate accuracy of our results.
Secondary keywords: geodesy;graduation thesis;hydrographic survey;depth model;interpolation;depth measurement;sonar;
Type (COBISS): Bachelor thesis/paper
Study programme: 0
Thesis comment: Univ. v Ljubljani, Fak. za gradbeništvo in geodezijo
Pages: VIII, 27 str.
ID: 10910830