A selection beamforming algorithm combined with the spatial equalizer for the VSB DTV receiver system

The paper proposes a new digital beamforming algorithm for vestigial sideband (VSB) based digital TV receivers. We consider a selection beamforming (SBF) algorithm combined with a spatial equalizer. To realize this, we make fixed beams for the SBF. We then select several beams which satisfy some criteria. We put them into the spatial equalizer. In the SBF, we mitigate the effect of multipath. This helps the synchronizer operating in the channel where the multipath signals are strong. To reduce the multipath component, which still exists in the beams due to the beam-pattern sidelobe, we choose some beams and combine them based on the least mean squares algorithm. To apply this algorithm, we have developed a simple VSB system simulator including VSB modulator. synchronizers, and an equalizer. We show that the proposed algorithms can improve the overall system performance, matching with other parts in the simulation.