The OFDM is sensitive to the synchronization of the OFDM symbol and the carriers' frequency excursion.

OFDM系统存在对数据符号同步和载波频率偏移极为敏感的问题。

youdao

A symbol timing algorithm for orthogonal frequency division multiplexing (OFDM) systems with the cyclic prefix under wireless channels is proposed.

提出了一种新的无线信道下基于循环前缀的正交频分复用系统符号定时同步算法。

youdao

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.

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。

youdao

Then through the use of GPS-based reference clocks at each tower (for both time and frequency), the signals are synced so each can emit a perfect copy of both signal and symbol data.

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