本文基于一种“单环”相关信道模型，对空时分组码和差分空时码进行了分析和研究。
In this thesis, space-time block coding and differential space-time coding are discussed on the basis of "one-ring" correlated channel model.
介绍了宽带相关MIMO信道模型。
A wideband correlated MIMO wireless channel model is introduced.
接着介绍了无线信道的相关知识、OFDM的系统模型和基本原理，并分析了OFDM信号的设计规则。
Secondly, we introduce the relational knowledge of wireless channel, the system model and basic theory of OFDM, also analyze OFDM signal's design rules.
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