摘要：This paper considers the distributed control of the LQR problem for discrete-time multiagent *** controllers are designed based on the solutions of centralized optimal control and the topological structure of the *** mild conditions,it is shown that the distributed controller can approximate to the centralized optimal *** the states of the closed-loop systems of the distributed control exponentially converge to the states of the closed-loop systems of the centralized optimal *** examples are given to show effectiveness of the proposed results.

摘要：This paper investigates a consensus design problem for continuous-time first-order multiagent systems with uniform constant communication *** that the agent dynamic is unstable and the diagraph is undirected,sufficient conditions are derived to guarantee *** key technique is the adoption of historical input information in the ***,when agent's own historical input information is used in the protocol design,the consensus condition is constructed in terms of agent dynamic,communication delay,and the eigenratio of the network *** result is presented to validate the effectiveness of the theoretical result.

摘要：研究了一类可以抑制切换时刻输出跳跃的多模型切换控制器的设计问题。基于参数化特征结构配置结果及模型跟踪方法,设计了满足输出跟踪性能并使多模型系统中各闭环子系统渐近稳定的多模型切换控制律集合。充分利用了参数化特征结构配置方法提供的全部自由度,协调选取各子系统控制律中的参数来抑制切换时刻的输出跳跃。将本文提出的方法应用到某型倾斜转弯导弹自动驾驶仪设计中,仿真结果表明导弹的输出过载迅速准确跟踪制导指令,并且切换抖动得到有效抑制。

摘要：In this paper, an uplink power control problem is considered for code division multiple access （CDMA） systems. A distributed algorithm is proposed based on linear quadratic optimal control theory. The proposed scheme minimizes the sum of the power and the error of signal-to-interference ratio （SIR）. A power controller is designed by constructing an optimization problem of a stochastic linear quadratic type in Krein space and solving a Kalman filter problem.

摘要：土地荒漠化和沙化是当今全球面临的最为严重的社会、经济和环境问题,"一带一路"沿线国家大都分布在荒漠化严重地区,超过60个国家正遭受着荒漠化的危害,我国境内丝绸之路经济带也是荒漠化和沙化土地的主要分布区。文中以陕西、甘肃、宁夏、青海、新疆和内蒙古为研究对象,在分析区域荒漠化土地分布格局的基础上,按照保护和改善沿线生态环境、重点治理沙质荒漠化土地的防治思路,分区施策,建设"三线、五屏、百区、千点"的丝绸之路经济带生态安全体系,为"一带一路"沿线国家荒漠化沙化防治提供可参考的宏观思路和对策。