New results on the robust stability analysis of neural networks with discrete and distributed time delays

Delay-dependent robust stability of cellular neural networks with time-varying discrete and distributed time-varying delays is considered. Based on Lyapunov stability theory and the linear matrix inequality （LMIs） technique, delay-dependent stability criteria are derived in terms of LMIs avoiding bounding certain cross terms, which often leads to conservatism. The effectiveness of the proposed stability criteria and the improvement over the existing results are illustrated in the numerical examples.     

双站RCS计算GRECO算法的新改进

针对利用单双站等效法存在的大角度双站雷达散射截面计算误差太大的问题和用被光照面作为积分区域计算双站雷达散射截面方法存在的无法处理相对接收站可见面的识别问题,从感应定理和等效原理出发,基于图形电磁计算方法,提出了双站雷达散射截面图形电磁算法的改进方法,解决了可见面的识别问题,扩大了感应定理和等效原理的应用范围,提高了双站雷达散射截面计算的准确度。通过对典型样件的计算结果比较与公认结果和解析算式结果一致,证明了该方法的有效性。     

Coordination Model Research Based on Command Decision Joint Intension

Command Decision Simulation （CDS） is not only an important and difficult issue in the field of simulation, but also a technique issue to be tackled in the course of collective Modeling and Simulation in Joint Operations Experiment Center. CDS can give support to all kinds of simulation. Using computer to realize the Blue side＇s command deci- sion automatic execution in the operation training simulation system can improve training effect. Using computer to realize the lower level command unit＇s automatic command deci- sion can help to reduce the number of controllers and release them from heavy work. It can also enlarge simulation scale and increase the freedom of the simulation entity especially the command entity, thus enhance the authenticity and credibility of the simulation. Ac- cording to the command decision structure and the Joint Intention Theory, the thesis puts forward the method of making use of Coordination Matrix （CM） to realizing cooperation among the entities in CDS and constructs the calculation sketch of Task Execution, Task Monitoring and Task Replanning. At the same time, the thesis brings forward the CDS structure vision based on Partial Global Planning（PGP）. As CM is an indispensable part of combat simulation, the theory and the method of CDS will become an important part for the theory of Combat Simulation.     

用系统论的观点看人——钱学森心身观思想研究

人身上的形神关系既是建立系统哲学必须解决的硬核问题,也是开展人体科学研究必须突破的重点问题。钱学森所倡导的人体科学理论强调用系统方法研究人,研究人身上的形神关系。人体科学对形神关系的探索为哲学理论硬核的范式转换,特别是系统哲学的建立奠定了坚实的理论基础。     

论中医理论中的系统整体性思想

中医理论中蕴含着丰富的系统整体性思想。它不同于西方分析还原论的研究方法,坚持用整体论去分析研究人体疾病：不仅强调人体各个组成部分之间和人体与自然环境之间的系统整体性,而且对疾病进行综合考察,辨证施治,立方用药,进行全身心调节,力求达到整体最佳的目标。中医是系统整体性科学。     

Capacity analysis of high-rank line-of-sight MIMO channels

Matrix perturbation theory is utilized to investigate high-rank line of sight multiple input multiple output channels in a microwave relay system. The upper and lower bounds of channel capacity are derived based on space time block codes technique and singular values decomposition. A useful constraint for designing LOS MIMO channels is developed by the use of the condition number of the MIMO channel matrix. The theoretical analysis of channel capacity is confirmed by the simulation. The results show that the proposed method is able to give a physical explanation of the high-rank LOS MIMO channel matrix characteristics.     

变换域通信系统的分形门限研究

变换域通信系统中,存在无法准确辨识的各种复杂干扰和难以找到对各种干扰均适用的阈值问题.基于分形理论的谱峰检测思想,提出分形门限概念,采用以盒维数为判据的谱峰检测算法,对干扰频谱的起点、终点进行判断,据此对干扰进行剔除,从而达到降低误码率的目的.仿真实验表明:该算法能显著降低变换域通信系统的误码率,特别对TDCS抗70%部分带宽干扰,改善尤为明显,达1dB以上;而对于TDCS抗线性调频干扰条件下,在大干信比时,对误码率的减小最为明显,约为1.7dB.该算法简单可靠,对提高变换域通信系统的抗干扰能力具有实用价值.     

系统、仿真系统及其理论

主要从基本理论、基本概念、基本方法、演变规律的角度,回顾、分析论述了系统、系统理论、原始系统、仿真系统、相似理论与系统仿真组合理论的基本内容、相互关联和发展概况,从而引出相应结论.     

基于复杂网络的军事通信网络建模与性能分析

针对军事通信体系的复杂性和网络化结构特点,通过分析体系中装备实体及各装备之间的通信关系,抽取通信网络模型的构建要素,提出军事通信网络图结构模型。在此基础上设计基于图论的测度指标,分别从装备实体重要性、链路通信重要性以及网络抗毁性3个层次分析军事通信网络的性能。最后,通过具体实例对所提模型及评价方法的可行性进行检验,为战场复杂体系建设提供理论依据。     

隐私侵犯经历对网络用户自我披露的影响机制

网络用户的自我披露对以用户生成内容为业务基础的互联网企业具有战略意义.然而,隐私侵犯事件层出不穷.如何鼓励有隐私侵犯经历的用户持续披露个人信息对互联网企业至关重要.采用系统性随机分层抽样,结合代理理论和社会契约理论构建模型,研究了隐私侵犯经历对自我披露的作用机制.结果表明,隐私侵犯经历对自我披露意愿具有直接效应和间接效应:隐私侵犯经历与自我披露意愿之间存在强烈负向关系,并通过影响网络用户对隐私政策、隐私保护技术、行业自律和法律执行的有效性感知影响自我披露意愿.本研究阐明了隐私侵犯经历对自我披露的具体作用机制,为互联网企业鼓励有隐私侵犯经历的用户持续披露个人信息提供可操作性建议.