Filter Bank Multicarrier (FBMC) is a multicarrier scheme that employs shaping filter for improved spectral properties. In this paper, a low complexity data-aided symbol timing and carrier frequency offset synchronization technique for FBMC is presented for continuous mode transmission. Two training sequences based on Zadoff–Chu sequence are proposed. The first sequence is called the Long Sequence that takes 9 FBMC symbols, it avoids the interference with data symbols and the second is called the Short Sequence that takes 3 FBMC symbols, it is a modified version of the Long Sequence for better spectral efficiency. An autocorrelation-based synchronization metric is used that exploits the repetition of samples in the received training sequence. High peak is produced by the synchronization metric during reception of the training sequence compared to the metric values during reception of data samples. This makes it easy for the receiver to recognize the training sequence and to perform the related estimates of the symbol timing and carrier frequency offset. The training sequence is also used for channel estimation. The performance was evaluated under different channel conditions for two different shaping filters.

滤波器组多载波（FBMC）是一种多载波方案，它采用整形滤波器来改善频谱特性。本文提出了一种用于连续模式传输的低复杂度数据辅助符号定时和FBMC载波频率偏移同步技术。提出了两个基于Zadoff–Chu序列的训练序列。第一个序列称为采用9个FBMC符号的长序列，它避免了对数据符号的干扰，第二个序列称为采用3个FBMC符号的短序列，它是Long序列的改进版本，具有更好的频谱效率。使用基于自相关的同步度量，该度量利用接收的训练序列中样本的重复。与在接收数据样本期间的度量值相比，在训练序列的接收期间由同步度量产生高峰值。这使得接收机易于识别训练序列并执行符号定时和载波频率偏移的相关估计。训练序列也用于信道估计。在两个不同的整形滤波器的不同通道条件下评估了性能。