基于导频的DVB-T接收端采样钟同步的算法研究

Research on pilot aided sampling clock synchronization algorithm for DVB-T receiver

针对数字地面广播(DVB-T)系统中的采样钟同步进行了研究,提出了一种利用导频信息进行采样钟偏差估计,并利用多项式插值进行补偿校正的采样钟同步方案。通过引入自适应算法,上述方案能有效地缩短达到稳定同步的时间。实例仿真表明,此方案能够在高斯信道下达到良好的同步效果。

Sampling clock synchronization algorithm for Digital Video Broadcasting Terrestrial（DVB-T） receiver is studied in this paper.Pilot aided method is proposed to estimate the sampling clock offset.Polynomial interpolation filter is introduced to compensate the distortion.Adapted method is used to shorten the synchronization time.Simulation proves that the algorithm can work properly under AWGN channel.