Timing synchronization for ATSC DTV receivers using the Nyquist sidebands

作者：Xiong, J^*; Sun, J; Qin, L

来源：IEEE Transactions on Broadcasting, 2005, 51(3): 376-382.

DOI：10.1109/TBC.2005.851125

• ATSC
• DTV
• Nyquist sidebands
• timing synchronization
• VSB

Gardner's timing method for BPSK or QPSK is actually one of the timing methods using the Nyquist sidebands. However, it requires at least two samples per symbol; and it is more suitable for two-level modulations. This paper presents another timing synchronization method that is suitable for ATSC DTV receivers, in which 8-VSB modulation is used. The correlation of both arms of the VSB signal is exploited. The S-curve of the proposed method is derived. Derivation shows the proposed method is also using the Nyquist sidebands. It can estimate the timing error even at symbol-rate. Simulations show the proposed method has good performance even in multi-path conditions.

• 出版日期2005-9
• 单位上海交通大学