In this paper,we investigate a leader-following tracking problem for multi-agent systems with boundedinputs.We propose a distributed bounded protocol for each follower to track a leader whose states may not be complet...In this paper,we investigate a leader-following tracking problem for multi-agent systems with boundedinputs.We propose a distributed bounded protocol for each follower to track a leader whose states may not be completelymeasured.We theoretically prove that each agent can follow the leader with estimable track errors.Finally,somenumerical simulations are presented to illustrate our theoretical results.展开更多
逻辑功效法延时估算是由Sutherland I E提出的,可以在设计初期快速估算逻辑门和逻辑电路的延时,减小逻辑电路设计的难度。但是,随着深亚微米CMOS工艺的普及,短沟道效应开始影响经典逻辑功效法的正确性。为了提高逻辑功效法估算精度,提...逻辑功效法延时估算是由Sutherland I E提出的,可以在设计初期快速估算逻辑门和逻辑电路的延时,减小逻辑电路设计的难度。但是,随着深亚微米CMOS工艺的普及,短沟道效应开始影响经典逻辑功效法的正确性。为了提高逻辑功效法估算精度,提出一种考虑速度饱和效应的改进方法,该方法主要分两步:首先,考虑反相器PMOS与NMOS宽之比,精确估算反相器的延时,并归一化;然后,基于反相器的延时和速度饱和的影响,估算逻辑门的延时。仿真模型采用了美国亚利桑那州立大学的PTM 32nm、65nm、90nm和130nm的模型,45nm采用了北卡罗来纳州立大学的FreePDK的模型,结合hspice仿真。经实验数据对比,该方法对与非门延时的估算精度提高约10%。展开更多
基金Supported by the National Science Foundation of China under Grant Nos.10702023,10832006,and 60704041the Research Fund for the Doctoral Program of Higher Education under Grant No.20070487090
文摘In this paper,we investigate a leader-following tracking problem for multi-agent systems with boundedinputs.We propose a distributed bounded protocol for each follower to track a leader whose states may not be completelymeasured.We theoretically prove that each agent can follow the leader with estimable track errors.Finally,somenumerical simulations are presented to illustrate our theoretical results.
文摘逻辑功效法延时估算是由Sutherland I E提出的,可以在设计初期快速估算逻辑门和逻辑电路的延时,减小逻辑电路设计的难度。但是,随着深亚微米CMOS工艺的普及,短沟道效应开始影响经典逻辑功效法的正确性。为了提高逻辑功效法估算精度,提出一种考虑速度饱和效应的改进方法,该方法主要分两步:首先,考虑反相器PMOS与NMOS宽之比,精确估算反相器的延时,并归一化;然后,基于反相器的延时和速度饱和的影响,估算逻辑门的延时。仿真模型采用了美国亚利桑那州立大学的PTM 32nm、65nm、90nm和130nm的模型,45nm采用了北卡罗来纳州立大学的FreePDK的模型,结合hspice仿真。经实验数据对比,该方法对与非门延时的估算精度提高约10%。
