Reduction of Coupling Effect in Digital Terrestrial Broadcasting Single Frequency Network(SFN)System
Details
Single Frequency Network(SFN)is being considered as a major candidate for digital terrestrial broadcasting in Japan, although its single-frequency feature leads to interference towards receiving antennas causing deterioration in its performance. In this paper, a method to prevent this interference by using array antenna as receiving antennas and cancellation at base band has been presented. A feed-back method to improve its cancellation ability during operation is also presented. Simulation has been done confirming its effectiveness.
