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Title:ANALIZA SIGNALOV DISKRETNE VEČTONSKE MODULACIJE PRI VDSL2-TEHNOLOGIJI
Authors:ID Tomašek, Damir (Author)
ID Planinšič, Peter (Mentor) More about this mentor... New window
Files:.pdf VS_Tomasek_Damir_2015.pdf (1,84 MB)
MD5: C9279F78ECE8491B77FF15D4FA40F320
 
Language:Slovenian
Work type:Undergraduate thesis
Typology:2.11 - Undergraduate Thesis
Organization:FERI - Faculty of Electrical Engineering and Computer Science
Abstract:V diplomski nalogi obravnavamo bakreni prenosni medij (sukano parico) ter vpliv motenj na kvaliteto in hitrost prenosa bitnih informacij, ki so odvisne od karakteristik bakrene linije in zunanjih elektromagnetnih vplivov iz okolice. Ker se motnje zelo dobro odražajo v frekvenčnem spektru VDSL2, smo na podlagi dobljenega signala diskretne večtonske modulacije (DMT) opravili analizo signala. Do vsakega naročnika so speljane bakrene parice, ki sčasoma spreminjajo fizikalne lastnosti. Iz analize DMT-signalov lahko na podlagi primerjanja signalov, ki smo jih dlje časa beležili na določenem prenosnem mediju, ugotovimo kako te motnje vplivajo na DMT-signal in posledično na sinhronizacijo modema.
Keywords:xDSL, omrežja, bakreni vodniki, frekvenčni spekter, DMT
Place of publishing:[Maribor
Publisher:D. Tomašek
Year of publishing:2015
PID:20.500.12556/DKUM-48039 New window
UDC:621.391(043.2)
COBISS.SI-ID:19072022 New window
NUK URN:URN:SI:UM:DK:XLZCGIEF
Publication date in DKUM:29.05.2015
Views:2046
Downloads:207
Metadata:XML DC-XML DC-RDF
Categories:KTFMB - FERI
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Secondary language

Language:English
Title:DISCRETE MULTI-TONE MODULATION SIGNALS ANALYSING FOR VDSL2-TECHNOLOGY
Abstract:In this thesis, we deal with copper transmission media (twisted pair) and the impact of interference on the quality of bit rate, caused by the physical characteristics of the copper line and the external electromagnetic influences from the environment. Due to disorder, which is very well reflected in the frequency spectrum modulation VDSL, we have conducted an analysis of the signal on the basis of the plotted signal discrete multi-tone modulation (DMT). Copper pairs, which over time change physical properties, are routed to each subscriber. From the analysis of the DMT signals, based on comparison of signals, which were recorded on a specific transmission medium for a longer period of time, it can be inferred how those errors influence on the DMT signal, and consequently on modem synchronisation.
Keywords:xDSL, network, copper conductors, frequency spectrum, DMT


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