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Digital television (DTV) receiver architecture with an antenna array is proposed to improve the reception performance in multipath fading conditions. The proposed DTV receiver uses diversity combining and equalization techniques in the beam-space. Two separate beamformers are forming separate beam patterns to two different signal arriving angles by utilizing a channel estimation technique. Then the outputs of the beamformers are combined with a proper time adjustment. Simulation results show the convergence speed of the proposed architecture is three times faster than that of the receiver using only one branch beamformer.
Date of Publication: Nov. 2003