A new time and frequency synchronization method based on frequency domain correlation for an Orthogonal frequency Division Multiplexing (OFDM) system is presented.

该文根据频域相关的原理，提出了一种新的用于无线移动信道下的正交频分复用(OFDM)系统的时频同步算法。

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China digital television terrestrial broadcasting standard GB20600-2006 is based on TDS-OFDM (Time-Domain Synchronous orthogonal Frequency Division Multiplexing) systems.

中国地面数字电视广播标准GB20600 - 2006是基于时域同步-正交频分复用(TDS - OFDM)系统的。

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By using wavelength division multiplexing, optical switch and optical time domain reflectometer (OTDR) technology, networks can be supervised automatically.

该方案将光波分复用技术、光开关和OTDR技术相结合，实现了对光纤通信网的自动在线监测。

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