A Robust and Adaptive Carrier Recovery Method for Chinese DTTB Receiver

Liang, Weiqiang; Chai, Jing; Guan, Yunfeng; Zhang, Wenjun; He, Dazhi

doi:10.1109/tbc.2007.913307

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Novel carrier recovery scheme in multicarrier digital TV system

Song

Jin

Liu

2012

Int J Communication

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SUMMARYThis work is aimed at researching and analyzing the performance of carrier recovery (CR) with two transmit antennas on a multicarrier digital TV system operating in time‐selective fading channel. It is shown in the paper that CR can correct the performance degradation caused by Doppler effect when the terminal is receiving high resolution digital TV signals in a fast moving environment. To have the ability to cover a large frequency range, the CR system should do a frequency sweep first. Then the coarse and fine frequency offset estimation is introduced. Both the theoretical and simulated results give valuable insight that the CR is able to perform well with a certain amount of channel fading. The phase and noise effect on the CR performance is also studied. The CR system and the working procedure concerning CR and timing recovery are also researched to give a full solution on synchronization. Copyright © 2012 John Wiley & Sons, Ltd.

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