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.

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。

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On the subject of optimal regulator for a generalized system, if the state trajectories of the system contain some impulses, the corresponding linear-quadratic performance index will become infinite.

关于广义系统的最优调节器问题，如果系统的状态轨迹含有脉冲响应，相应的二次型性能指标为无穷大。

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The optimal stage of performance stage : to enhance the position capacity spaces the comprehensively and achieve the best state, realize the athletic value of themselves, and create good results;

最佳竞技阶段是全面提高专位综合能力，达到最佳状态，实现自身运动价值，创造优异的成绩；

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The key is for athletes to learn their "optimal state for performance, " or the emotional and mental state that enables the best of their abilities to shine in performance, said mental conditioning coach and former triathlete Chris Janzen, whose practice focuses on unlocking "the clarity, mental strength and emotional endurance" to help athletes maximize their potential.

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