Thus, in OFDM communication sytems, carrier frequency offset must be estimated and compensated at the receiver to minimize the effects of intercarrier interference and maintain orthogonality.

• 因此，在正交频分复用通信系统中，接收信号必须进行频率偏移估计和补偿来减小载波间干扰并维持子载波之间的正交性。