简要介绍了自适应天线系统及三种常用的最佳加权系数准则，讨论了一些常用的自适应数字波束形成算法。

Adaptive antenna system as well as three usual optimal weight coefficient rules is introduced briefly and some usual algorithms about adaptive digital beamforming are discussed.

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本文介绍一种基于时域综合法的由最佳线性过滤器构成的自适应系统。

According to the time domain synthetic method, this paper introduces an adaptive system constituted by the optimum linear filter.

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针对MIMO空分复用系统中利用信道状态信息自适应选择最佳预编码方案能有效提高系统性能，提出了一种基于有限比特反馈的预编码联合优化算法。

In MIMO spatial multiplexing system, channel state information(CSI) is very useful for adaptive selection of the optimal precoding schemes which can enhance system performance effectively.

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