Time-domainequalizer (TEQ) is an effective technique to combat ISI caused by inadequate circular prefix (CP) length in OFDM systems.
在OFDM系统中，时域均衡器用来抵消因循环前缀长度不足而引起的码间串扰。
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On the basis of studying on wireless communication channels, this paper discusses the appearance of ISI, introduces Nyquist first rule and the theory of time-domainequalizer.
Tore duce effective the multipath disturbance and multi-user interference and improve the SNR, time-domainequalizer is employed at the output of each array element of smart antenna.