But OFDM is very sensitive to synchronization error, especially the symbol synchronization error.
但是OFDM对同步误差十分敏感，特别是符号同步误差。
The system model is introduced and the probability of error in receiver as a function of symbol synchronization error 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。
Estimating and compensating carrier frequency offset are to achieve carrier frequency synchronization. Estimating symbol rate and correcting timing error are used to synchronize symbol.
估计并补偿频偏是为了实现载波同步，估计符号率和校正定时误差是为了实现码元同步。
Synchronization error will lead to inter symbol interference as well as inter carrier interference. Therefore, synchronization is extremely crucial to OFDM systems.
同步错误不但会导致符号间干扰，还会导致信道间干扰，因此同步是OFDM的关键技术。
Synchronization error will lead to inter symbol interference as well as inter carrier interference. Therefore, synchronization is extremely crucial to OFDM systems.
同步错误不但会导致符号间干扰，还会导致信道间干扰，因此同步是OFDM的关键技术。
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