This paper studies the multi-agent tracking problem of a third-order maneuvering target under uncertain communication environments. Each tracking agent is assumed to be a third-order system and can only use its own an...This paper studies the multi-agent tracking problem of a third-order maneuvering target under uncertain communication environments. Each tracking agent is assumed to be a third-order system and can only use its own and neighbors＇ position, velocity, and acceleration information to design its control input. In this work, the uncertain communication environments are modelled by a finite number of constant Laplacian matrices together with their corresponding scheduling functions. Sufficient conditions for the existence of a tracking strategy have been expressed in terms of the solvability of linear matrix inequalities. Finally, a numerical example is employed to demonstrate the effectiveness of the proposed tracking strategy.展开更多
为了提高太阳能光伏发电的效率,通过对比分析、研究得出一种跟踪控制策略。在建立地平坐标系基础上,采用SPA(single page web application)算法计算得出地平坐标下太阳运行轨迹,分析太阳的运行规律;对跟踪轴偏差控制和入射角偏差控制跟...为了提高太阳能光伏发电的效率,通过对比分析、研究得出一种跟踪控制策略。在建立地平坐标系基础上,采用SPA(single page web application)算法计算得出地平坐标下太阳运行轨迹,分析太阳的运行规律;对跟踪轴偏差控制和入射角偏差控制跟踪策略进行比较分析,得出对入射角偏差检查控制跟踪系统步进的方法既降低了跟踪启动次数,又能够减小系统自身能耗,该方法是比较优秀的太阳能聚光光伏发电跟踪系统的跟踪控制策略。展开更多
为了解决商用车驾驶过程中转向力矩跟踪精度不高,反馈给驾驶员的路感出现偏差与滞后问题,通过选取两轴商用车二自由度车辆模型对Trucksim内置阻力矩的计算进行推导,采用高精度正交编码传感器对方向盘转角进行解析,将解析后的前轮转角通...为了解决商用车驾驶过程中转向力矩跟踪精度不高,反馈给驾驶员的路感出现偏差与滞后问题,通过选取两轴商用车二自由度车辆模型对Trucksim内置阻力矩的计算进行推导,采用高精度正交编码传感器对方向盘转角进行解析,将解析后的前轮转角通过CAN(controller area network)发送器发送到LabVIEW的CAN接收模块,借助转向系统实验台实现LabVIEW与Trucksim的联合仿真。结果表明,LabVIEW通过控制PXI(PCI extensions for instrumentation)驱动伺服电机产生的模拟地面转向阻力矩能够很精确地跟踪上Trucksim输出的前轮地面转向阻力矩,并且及时反馈给驾驶员适当的路感,为商用车转向系统助力的设计提供依据。展开更多
基金supported by the National Natural Science Foundation of China(Grant No.61104086)the Scientific Research,Postgraduate Training Joint-Build Project(Grant No.20120639002)the China Scholarship Council(Grant No.201306030027)
文摘This paper studies the multi-agent tracking problem of a third-order maneuvering target under uncertain communication environments. Each tracking agent is assumed to be a third-order system and can only use its own and neighbors＇ position, velocity, and acceleration information to design its control input. In this work, the uncertain communication environments are modelled by a finite number of constant Laplacian matrices together with their corresponding scheduling functions. Sufficient conditions for the existence of a tracking strategy have been expressed in terms of the solvability of linear matrix inequalities. Finally, a numerical example is employed to demonstrate the effectiveness of the proposed tracking strategy.
文摘为了提高太阳能光伏发电的效率,通过对比分析、研究得出一种跟踪控制策略。在建立地平坐标系基础上,采用SPA(single page web application)算法计算得出地平坐标下太阳运行轨迹,分析太阳的运行规律;对跟踪轴偏差控制和入射角偏差控制跟踪策略进行比较分析,得出对入射角偏差检查控制跟踪系统步进的方法既降低了跟踪启动次数,又能够减小系统自身能耗,该方法是比较优秀的太阳能聚光光伏发电跟踪系统的跟踪控制策略。
文摘为了解决商用车驾驶过程中转向力矩跟踪精度不高,反馈给驾驶员的路感出现偏差与滞后问题,通过选取两轴商用车二自由度车辆模型对Trucksim内置阻力矩的计算进行推导,采用高精度正交编码传感器对方向盘转角进行解析,将解析后的前轮转角通过CAN(controller area network)发送器发送到LabVIEW的CAN接收模块,借助转向系统实验台实现LabVIEW与Trucksim的联合仿真。结果表明,LabVIEW通过控制PXI(PCI extensions for instrumentation)驱动伺服电机产生的模拟地面转向阻力矩能够很精确地跟踪上Trucksim输出的前轮地面转向阻力矩,并且及时反馈给驾驶员适当的路感,为商用车转向系统助力的设计提供依据。
