“接收信号码域功率( Received Signal Code Power)”或“接收定时偏差（Rx Timing Deviation）”的测量，测量报告准则可以是事件型或周期型：
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而产生ISI和ICI的主要原因是在OFDM系统接收端产生的符号定时偏差和载波频率偏差。
The most critical causes yielding the ISI as well as ICI are symbol timing and carrier frequency offset which are occurred in the OFDM receiver.
文中分析了同步偏差即定时偏差和载波恢复相差对MPAM和MQAM接收性能的影响。
The influences of timing offset and carrier phase offset on the performances of MPAM and MQAM are analyzed.
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