Because of using orthogonal antennas, it receives signal which from all-round is strongest intensity.

采用正交天线，不论信号来自任何方向，它接收到的都是最大值。

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Orthogonal frequency division multiplexing (OFDM), single carrier frequency domain equalization (SC-FDE) and multiple antennas technique are efficient techniques to achieve this goal.

正交频分复用(OFDM)技术、单载波频域均衡技术(SC - FDE)和多天线技术都是有助于达到这一目标的有效技术。

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So we put forward an orthogonal method which can be used to design the STTC with large number of transmit antennas and avoid the complicated search for the code.

针对这种情况，本文给出了一种空时网格码的正交设计方法。 这种方法可以用来构造大天线数目的码字，从而避免了繁琐的码字搜索过程。

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