This paper focuses on the methodology analysis for the stability and the corresponding tracking performance of a closed-loop digital jump linear control system with a stochastic switching signal. The method is applied...This paper focuses on the methodology analysis for the stability and the corresponding tracking performance of a closed-loop digital jump linear control system with a stochastic switching signal. The method is applied to a flight control system. A distributed recoverable platform is implemented on the flight control system and subject to independent digital upsets. The upset processes are used to stimulate electromagnetic environments. Specifically, the paper presents the scenarios that the upset process is directly injected into the distributed flight control system, which is modeled by independent Markov upset processes and independent and identically distributed （IID） processes. A theoretical performance analysis and simulation modelling are both presented in detail for a more complete independent digital upset injection. The specific examples are proposed to verify the methodology of tracking performance analysis. The general analyses for different configurations are also proposed. Comparisons among different configurations are conducted to demonstrate the availability and the characteristics of the design.展开更多
Based on comparative analysis of different perspectives related to enterprise strategic cost management or strategic management process, the author considers that the process of strategic cost management includes two ...Based on comparative analysis of different perspectives related to enterprise strategic cost management or strategic management process, the author considers that the process of strategic cost management includes two major steps as strategy formulation and strategy implementation. The cost strategic management methods can be classified as cost strategy formulation methods and implementation methods according to the strategic cost management process; and the cost strategy implementation methods are divided into strategy implementation basis confirmation method, organizational implementation method, supervision （surveillance） and variance （performance） analysis ＆ adjustment method according to the contents to be implemented.展开更多
基金Project supported by the Young Scientists Fund of the National Natural Science Foundation of China(Grant No.61403395)the Natural Science Foundation of Tianjin,China(Grant No.13JCYBJC39000)+2 种基金the Scientific Research Foundation for the Returned Overseas Chinese Scholars,State Education Ministry,Chinathe Tianjin Key Laboratory of Civil Aircraft Airworthiness and Maintenance in Civil Aviation of China(Grant No.104003020106)the Fund for Scholars of Civil Aviation University of China(Grant No.2012QD21x)
文摘This paper focuses on the methodology analysis for the stability and the corresponding tracking performance of a closed-loop digital jump linear control system with a stochastic switching signal. The method is applied to a flight control system. A distributed recoverable platform is implemented on the flight control system and subject to independent digital upsets. The upset processes are used to stimulate electromagnetic environments. Specifically, the paper presents the scenarios that the upset process is directly injected into the distributed flight control system, which is modeled by independent Markov upset processes and independent and identically distributed （IID） processes. A theoretical performance analysis and simulation modelling are both presented in detail for a more complete independent digital upset injection. The specific examples are proposed to verify the methodology of tracking performance analysis. The general analyses for different configurations are also proposed. Comparisons among different configurations are conducted to demonstrate the availability and the characteristics of the design.
文摘Based on comparative analysis of different perspectives related to enterprise strategic cost management or strategic management process, the author considers that the process of strategic cost management includes two major steps as strategy formulation and strategy implementation. The cost strategic management methods can be classified as cost strategy formulation methods and implementation methods according to the strategic cost management process; and the cost strategy implementation methods are divided into strategy implementation basis confirmation method, organizational implementation method, supervision （surveillance） and variance （performance） analysis ＆ adjustment method according to the contents to be implemented.
