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PRIMERJALNA MERITEV RAZDALJE OD LADJE DO RADARSKEGA ODSEVNIKA
ID Grdadolnik, Erik (Author), ID Dimc, Franc (Mentor) More about this mentor... This link opens in a new window

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Abstract
V diplomski nalogi sem predstavil in primerjal med sabo razdalje od plovila do radarskega odsevnika, dobljene z radarjem in sprejemnikom GNSS. Predvsem sem analiziral natančnost pri določanju razdalje radarskega sistema v primerjavi z GNSS sistemom. Ključni predmet praktične izvedbe je bil stacionarni radarski odsevnik, ki je bil kot izhodiščna točka pri določanju razdalje za oba uporabljena sistema. Na začetku sem predstavil, kaj je radarski odsevnik, iz česa in kako je sestavljen. Omenil in naštel sem lastnosti, ki vplivajo na efektivno odsevno površino odsevnika, ter dodal enačbo, po kateri se jo izračuna. Predstavil sem vrsti, na katere se odsevniki delijo, na aktivne in pasivne radarske odsevnike, in tudi razložil v čem se razlikujeta. V nadaljevanju sem opisal načrt in pripravo praktične izvedbe, kaj je bilo treba narediti in katere pripomočke zagotoviti za nemoteno in varno izvedbo meritev. Same meritve sem razdelil po zaporednih številkah plovb, ki smo jih opravili, ter njihov potek opisal in predstavil. Pod pripomočki sem opisal značilnosti radarja in GNSS sprejemnika, ki smo ju uporabljali na šolskem plovilu MČ Slovenija. V predzadnjem poglavju sem predstavil rezultate meritev in dodal v pogled podatke analiz posameznih plovb. Prav tako sem kategoriziral slike radarskega zaslona na tri skupine glede na kvaliteto zaznavnosti radarskega odsevnika. Na koncu diplomske naloge sem podal komentar glede uspešnosti ali neuspešnosti praktične izvedbe in video analize in neke vrste smernice, kaj bi lahko spremenil za boljšo izvedbo in natančnejše rezultate meritev.

Language:Slovenian
Keywords:primerjalna meritev razdalje, radarski odsevnik, GNSS sistem, radarski sistem, gain in range radarja, hitrost in kurz plovbe, analiza rezultatov meritev, merjenje razdalje radarja, zaznan odsevnik, nezaznan odsevnik
Work type:Bachelor thesis/paper
Organization:FPP - Faculty of Maritime Studies and Transport
Year:2022
PID:20.500.12556/RUL-136954 This link opens in a new window
Publication date in RUL:26.05.2022
Views:341
Downloads:50
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Secondary language

Language:English
Title:COMPARATIVE DISTANCE MEASUREMENT FROM THE VESSEL TO THE RADAR REFLECTOR
Abstract:
In my dissertation, I presented and compared radar and GNSS distances from the ship to the radar reflector. In particular, I analyzed the accuracy of range determination of the radar system compared to the GNSS system. The main object of the practical implementation was the stationary radar reflector, which was the starting point for the determination of the distance for both systems used. At the beginning I presented what a radar reflector is and what it is made of. I mentioned and listed the properties that affect the reflecting surface of the reflector and added the equation that can be used to calculate it. I have introduced two types of reflectors, active and passive radar reflectors, and also described how they differ. Below I have described the plan and preparation for practical implementation. What had to be done and what tools should be available to perform the measurements smoothly and safely. I have divided the measurements into the number of voyages we made and described and illustrated their courses. In the accessories I have described the characteristics of the radar and GNSS receiver that we used on the motor boat Slovenija. In the penultimate chapter I presented the results of the measurements and added the data of the evaluations of the individual voyages. I also divided the images of the radar screen into three groups, depending on the quality of detection of the radar reflector. At the end of the dissertation, I commented on the success or failure of the practical implementation and video analysis. And some kind of guidance on what I could change for better performance and more accurate measurement results.

Keywords:comparative distance measurement, radar reflector, GNSS system, radar system, gain and range of radar, speed and course of navigation, analysis of measurement results, measurement of radar distance, detected reflector, undetected reflector

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