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master's thesis
Mjere kvalitete prijenosa signala u OFDM sustavima
Zagreb: University of Zagreb, Faculty of Electrical Engineering and Computing, 2016. urn:nbn:hr:168:650359
Runjić, Paško
University of Zagreb
Faculty of Electrical Engineering and Computing

Institutional repository: FER Repository

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Runjić, P. (2016). Mjere kvalitete prijenosa signala u OFDM sustavima (Master's thesis). Zagreb: University of Zagreb, Faculty of Electrical Engineering and Computing. Retrieved from https://urn.nsk.hr/urn:nbn:hr:168:650359

Runjić, Paško. "Mjere kvalitete prijenosa signala u OFDM sustavima." Master's thesis, University of Zagreb, Faculty of Electrical Engineering and Computing, 2016. https://urn.nsk.hr/urn:nbn:hr:168:650359

Runjić, Paško. "Mjere kvalitete prijenosa signala u OFDM sustavima." Master's thesis, University of Zagreb, Faculty of Electrical Engineering and Computing, 2016. https://urn.nsk.hr/urn:nbn:hr:168:650359

Runjić, P. (2016). 'Mjere kvalitete prijenosa signala u OFDM sustavima', Master's thesis, University of Zagreb, Faculty of Electrical Engineering and Computing, accessed 30 November 2024, https://urn.nsk.hr/urn:nbn:hr:168:650359

Runjić P. Mjere kvalitete prijenosa signala u OFDM sustavima [Master's thesis]. Zagreb: University of Zagreb, Faculty of Electrical Engineering and Computing; 2016 [cited 2024 November 30] Available at: https://urn.nsk.hr/urn:nbn:hr:168:650359

P. Runjić, "Mjere kvalitete prijenosa signala u OFDM sustavima", Master's thesis, University of Zagreb, Faculty of Electrical Engineering and Computing, Zagreb, 2016. Available at: https://urn.nsk.hr/urn:nbn:hr:168:650359

Metadata
TitleMjere kvalitete prijenosa signala u OFDM sustavima
Title (english)Measures of signal transmission quality in OFDM systems
AuthorPaško Runjić
MentorGordan Šišul (mentor)
Committee memberGordan Šišul (predsjednik povjerenstva)
Committee memberRobert Nađ (član povjerenstva)
Committee memberKrešimir Malarić (član povjerenstva)
GranterUniversity of Zagreb
Faculty of Electrical Engineering and Computing
Zagreb
Defense date and country2016-07-14, Croatia
Scientific / art field,
discipline and subdiscipline		TECHNICAL SCIENCES
Electrical Engineering
Abstract
LTE koristi OFDM koji dijeli serijski prijenos podataka na više podnosioca. Pri velikim izlaznim snagama radijskog odašiljača nastaju izobličenja signala. EVM je definiran kao verzor razlike mjerenog i idealnog moduliranog signala. Glavna mana OFDM-a jest visok omjer vršne i srednje vrijednosti snage. Radi bolje efikasnosti te boljih performansi kao pojačalo snage u LTE odašiljačima se koristi Doherty pojačalo. Digitalna pred-distorzija se koristi za ispravljanje nelinearnog dijela karakteristike pojačala. ACLR je mjera za omjer srednje snage u susjednom kanalu i snage u glavnom kanalu, koja daje informaciju o količini izvanpojasnih emisija.
Abstract (english)
LTE uses OFDM, which splits serial transmission into a parallel one with multiple carriers. At higher power output levels, signal becomes more distorted. EVM is defined as a vector difference between measured and ideal signal. Main drawback of OFDM is high peak to average power ratio. LTE transmitters mainly use Doherty amplifier, because it shows better efficiency and performance at higher levels of output power. Digital pre-distortion is used for correcting parts of amplifier characteristics which is not linear. ACLR is a measure which measures leakage of power in adjacent channels.
Keywords
Keywords (english)
Languagecroatian
URN:NBNurn:nbn:hr:168:650359
Study programmeTitle: Information and Communication Technology
Study programme type: university
Study level: graduate
Academic / professional title: magistar/magistra inženjer/inženjerka informacijske i komunikacijske tehnologije (magistar/magistra inženjer/inženjerka informacijske i komunikacijske tehnologije)
Type of resourceText
File originBorn digital
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Created on2018-02-06 11:39:22