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DOA estimation based beamforming technique for DTV reception performance enhancement  

문성훈 (경북대학교전자전기공학부)
한동석 (경북대학교전자전기공학부)
Publication Information
Journal of Broadcast Engineering / v.8, no.2, 2003 , pp. 136-145 More about this Journal
Abstract
This paper proposes a DTV receiver using beamforming techniques to improve indoor and mobile reception. The proposed DTV receiver estimates the directions of arrival (DOAs) of incoming signals using Capon's DOA estimation method and generates an adaptive antenna beam pattern to the estimated DOA of the mainpath signal to Improve the channel condition. After beamforming, a following decision feedback equalizer (DFE) removes the remaining multipath components. The proposed receiver can be implemented with a conventional DTV receiver without anymodification. The performance of the proposed receiver is analyzed with modified Brazilian field test models, which include DOA information of Incoming signals. Simulation results show that the proposed receiver can satisfy the threshold of visibility (TOV) when input signal to noise ratio is slightly over 10 dB.
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