Influence of RF oscillators on an OFDM signal

Author

Muschallik, Claus

Author_Institution

Adv. RF-Lab. VRF, Thomson Multimedia, Villingen, Germany

Volume

41

Issue

3

fYear

1995

fDate

8/1/1995 12:00:00 AM

Firstpage

592

Lastpage

603

Abstract

This paper explains the mechanisms that lead to a degradation of an OFDM signal because of the phase noise of the RF oscillators. An approach for easy calculation of SNR, independent of carrier numbers, will be given. This SNR approach uses a plot of the phase noise power density for the calculation. The theoretical results lead to an improved synthesizer concept. Values of SNR and BER will be given for the new synthesizer concept

Keywords

digital phase locked loops; digital television; discrete Fourier transforms; frequency division multiplexing; phase noise; quadrature amplitude modulation; radiofrequency oscillators; television broadcasting; television equipment; television receivers; tuning; video signal processing; 64 QAM; BER; OFDM signal; PLL; RF oscillators; SNR; TV systems; broadcasting; carrier numbers; digital TV; discrete Fourier transform; mechanisms; phase noise; phase noise power density; signal degradation; synthesizer concept; Demodulation; Discrete Fourier transforms; OFDM modulation; Phase noise; RF signals; Radio frequency; Signal to noise ratio; Synthesizers; Tuners; Voltage-controlled oscillators;

fLanguage

English

Journal_Title

Consumer Electronics, IEEE Transactions on

Publisher

ieee

ISSN

0098-3063

Type

jour

DOI

10.1109/30.468090

Filename

468090