在语音和低速数据用户接收机中可以使用简单的干扰抵消器，用于消除一条高速数据信道产生的自干扰。
We can simply use an interference eliminator in voice and low rate data user receiver to eliminate the self-interference produced by high rate data channel.
但是这种正交性却被多径衰落信道破坏，产生了多码道干扰，严重影响了系统高速传输数据的性能。
The orthogonality, however, is impaired by multipath fading channels, thus causing multicode interference (MCI) and deteriorating the system's performance at high data transmission rates.
高数据传输速率以及终端的高速移动，导致无线通信信道具有时间选择性与频率选择性两个特征。
High data transmission rates and high mobility give rise to time - and frequency - selectivity in wireless communication channels.
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