But it is sensitive to synchronization error, and especially the frequency synchronization error.
但是OFDM对同步误差十分敏感，特别是对于频率同步误差。
However OFDM and MIMO OFDM systems are very sensitive to time and frequency synchronization errors, especially the frequency synchronization error.
但OFDM系统和MIMO OFDM系统对时间和频率同步误差很敏感，特别是频率同步误差。
Phase errors is introduced in echo demodulation process because of the frequency synchronization error, and then, the final focus result will be deteriorated.
在接收端解调过程中，该频率同步误差会引入一定的相位误差，进而影响下一步的成像处理。
Phase errors is introduced in echo demodulation process because of the frequency synchronization error, and then, the final focus result will be deteriorated.
在接收端解调过程中，该频率同步误差会引入一定的相位误差，进而影响下一步的成像处理。
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