通过对AFDX协议的研究及对当前端系统常用调度方法的分析,提出索引表静态优先级调度方法(AFDX Index Priority Scheduling——AISP);针对FPGA芯片的设计特点,给出AISP方法的逻辑实现;从优先级、流量整形、确定性等方面对该方法进行分析...通过对AFDX协议的研究及对当前端系统常用调度方法的分析,提出索引表静态优先级调度方法(AFDX Index Priority Scheduling——AISP);针对FPGA芯片的设计特点,给出AISP方法的逻辑实现;从优先级、流量整形、确定性等方面对该方法进行分析和评价,并利用Matlab工具对虚拟链路最大延迟和平均延迟进行仿真;仿真结果证明,AISP调度方法具有较好的实时性,并且能够满足不同紧急程度的网络数据传输的需求。展开更多
The fault accommodation problem for time-delay system is studied in this paper. The progressive accommodation strategy based on the Newton-Raphson scheme is proposed to solve this problem. This accommodation scheme ca...The fault accommodation problem for time-delay system is studied in this paper. The progressive accommodation strategy based on the Newton-Raphson scheme is proposed to solve this problem. This accommodation scheme can significantly reduces the loss of performance and risk associated with system instability which results from the time-delay needed by fault accommodation algorithms to provide a solution. Simulation results are given to illustrate the efficiency of the provided method.展开更多
This paper proposes a clustered trajectories anonymity scheme （CTA） that enhances the kano nymity scheme to provide the intended level of source location privacy in mobile event monitoring when a global attacker is ...This paper proposes a clustered trajectories anonymity scheme （CTA） that enhances the kano nymity scheme to provide the intended level of source location privacy in mobile event monitoring when a global attacker is assumed. CTA applies isomorphic property of rotation to create traces of the fake sources distributions which are similar to those of the real sources. Thus anonymity of each trajectory and that of the clustered is achieved. In addition, location kdiversity is achieved by dis tributing fake sources around the base station. To reduce the time delay, tree rooted at the base sta tion is constructed to overlap part of the beacon interval of the nodes in the hierarchy. Both the ana lytical analysis and the simulation results prove that proved energy overhead and time delay. our scheme provides perfect anonymity with improved energy overhead and time delay.展开更多
文摘通过对AFDX协议的研究及对当前端系统常用调度方法的分析,提出索引表静态优先级调度方法(AFDX Index Priority Scheduling——AISP);针对FPGA芯片的设计特点,给出AISP方法的逻辑实现;从优先级、流量整形、确定性等方面对该方法进行分析和评价,并利用Matlab工具对虚拟链路最大延迟和平均延迟进行仿真;仿真结果证明,AISP调度方法具有较好的实时性,并且能够满足不同紧急程度的网络数据传输的需求。
基金National Natural Science Foundation of China (No.60574081)
文摘The fault accommodation problem for time-delay system is studied in this paper. The progressive accommodation strategy based on the Newton-Raphson scheme is proposed to solve this problem. This accommodation scheme can significantly reduces the loss of performance and risk associated with system instability which results from the time-delay needed by fault accommodation algorithms to provide a solution. Simulation results are given to illustrate the efficiency of the provided method.
基金Supported by the National Natural Science Foundation of China(No.60903157)the Fundamental Research funds for the Central Universities of China(No.ZYGX2011J066)the Sichuan Science and Technology Support Project(No.2013GZ0022)
文摘This paper proposes a clustered trajectories anonymity scheme （CTA） that enhances the kano nymity scheme to provide the intended level of source location privacy in mobile event monitoring when a global attacker is assumed. CTA applies isomorphic property of rotation to create traces of the fake sources distributions which are similar to those of the real sources. Thus anonymity of each trajectory and that of the clustered is achieved. In addition, location kdiversity is achieved by dis tributing fake sources around the base station. To reduce the time delay, tree rooted at the base sta tion is constructed to overlap part of the beacon interval of the nodes in the hierarchy. Both the ana lytical analysis and the simulation results prove that proved energy overhead and time delay. our scheme provides perfect anonymity with improved energy overhead and time delay.
