给出了线性分集均衡器和判决反馈分集均衡器两种结构的工作原理，并从理论上证明了后者的最小均方误差性能优于线性空间分集组合器；

The principles of the linearity diversity equalizer and decision feedback diversity equalizer are presented, and the MMSE of the latter is proved to be better than the former.

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使用最小均方误差准则，用一个FIR均衡器联合缩短信息与回波冲激响应，有效地缩短了回波和信道冲激响应长度。

Both channel and echo response can be shortened at random with a single FIR equalizer by following the minimum mean square error rule.

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