But OFDM is very sensitive to synchronizationerror, especially the symbolsynchronizationerror.
但是OFDM对同步误差十分敏感，特别是符号同步误差。
2
The system model is introduced and the probability of error in receiver as a function of symbolsynchronizationerror is deduced.
给出了该系统模型，推导了PAM通信系统符号同步误差对收端误码率的影响。
3
Estimating and compensating carrier frequency offset are to achieve carrier frequency synchronization. Estimating symbol rate and correcting timing error are used to synchronize symbol.