Title Skaitmeninės ryšio sistemos klaidos vektoriaus amplitudės matavimo metodo tyrimas /
Translation of Title Investigation of error vector magnitude measurement method in digital wireless system.
Authors Karaliūnas, Marius
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Pages 43
Keywords [eng] OFDM ; EVM ; digital system ; wirelesss
Abstract [eng] The need of reducing time for testing radio systems is described in this work. In literature review various methods and models were analyzed for error vector magnitude measurements. They were compared according to the technique of measurement and cost. In methodical part 2 models were chosen: OFDM with QPSK modulator and OFDM with QAM16 modulator. These two models were analyzed. Measurements consist of system analysis to random data also EVM was measured. After this correct data was formed from random data according to EVM which was more than 1%. Another measurements were done with correct data to measure error vector magnitude. After all theoretical model measurements were done, average EVM is calculated and some findings were done. In experimental part model was created in reality. Realized system has QPSK modulator. System analysis was done with random data and then with correct data to compare. After all results were got, final conclusion is present.
Dissertation Institution Kauno technologijos universitetas.
Type Master thesis
Language Lithuanian
Publication date 2016