A Study of Ghost Interferences on Digital Broadcasting

Abstract

DTTB(Digital Terrestrial Television Broadcasting) has been studied for new TV services and efficient usage of frequency. The modulation method of DTTB should be OFDM (Orthogonal Frequency Division Multiplex) because of the robustness against ghost interferences. In this paper, theoretical study of BER (Bit Error Rate) degradation by ghost waves is described, and the result of experimental measurement is also mentioned.