双渠道供应链中制造商与零售商的服务合作定价策略

在双渠道供应链中,为缓解渠道冲突,提高服务效率,制造商选择将电子渠道的服务交由零售商完成.在对称信息的框架下,建立了双渠道供应链中制造商电子渠道与零售商服务合作的Stackelberg和Bertrand博弈模型.发现渠道价格和需求受制造商在电子渠道的边际服务成本和零售商在电子渠道的边际服务成本影响;制造商在电子渠道的服务成本与零售渠道的定价正相关.当零售渠道服务水平高于电子渠道服务水平时,零售商的服务成本与电子渠道的定价正相关.Stackelberg竞争下制造商电子渠道和零售渠道价格均小于Bertrand竞争情形.制造商总是偏好作价格的领导者.利用算例分析了市场批发价格、渠道服务水平等对零售商选择Stackelberg竞争或Bertrand竞争偏好的影响.     

有向多重边复杂网络的自适应同步控制

基于网络拆分的思想,将具有不同时延的多重边有向复杂网络进行拆分,建立了具有非线性耦合节点的多重边有向复杂网络模型,并对其自适应同步控制加以研究.运用Lyapunov稳定性理论并结合自适应控制方法,给出了外部耦合系数未知的情况下自适应同步控制器的设计,最后以陈系统为例对多重边有向复杂网络进行数值仿真,验证了控制策略的有效性.     

跳跃扩散模型下美式回望期权定价方法

回望期权是一种严重路径依赖性期权,美式回望期权的价格尤其依赖于标的资产的价格路径;实际市场中其标的资产的价格过程存在跳跃现象。考虑到这两个事实,本文应用一种新方法总体最小二乘蒙特卡罗模拟为跳跃扩散模型下的美式回望期权定价。该方法改进Longstaff等提出的最小二乘蒙特卡罗方法,用来为美式回望期权定价,将其定价结果与构造二叉树图的计算结果进行比较发现,用总体最小二乘蒙特卡罗方法为美式回望期权定价是合理的,并且具有一定的优越性。     

一种考虑指标期望的战略外包商选择方法

针对考虑指标期望的战略外包商选择问题,提出了一种基于模糊公理设计的决策分析方法。首先,将企业决策者针对评价指标给出的语言短语形式的期望信息和专家小组针对备选战略外包商的实际绩效给出的语言短语形式的评价信息分别映射为期望范围和实际范围;然后,依据模糊公理设计的思想,计算备选战略外包商在各指标下的信息量,淘汰完全不满足决策者期望的备选战略外包商;进一步地,通过各指标信息量和指标权重的集结得到剩余备选战略外包商的信息总量,并根据信息总量的排序结果选择最理想的战略外包商。最后,通过一个实例分析说明了提出方法的有效性。     

基于混沌差分进化算法的飞机等效系统拟配研究

提出了基于Tent映射的混沌差分进化算法。以某飞机纵向短周期系统为例,首次研究了基于混沌差分进化算法的飞机等效系统的拟配,克服了一些传统的拟配算法存在的一些缺点。仿真结果表明,基于混沌差分进化算法拟配得到的等效系统满足等效系统拟配的各项要求和一级飞行品质的要求,取得了更好的拟配效果。证明该算法在飞机等效系统拟配中的有效性和高效性。

Abstract：

Chaotic differential evolution algorithm based on Tent map was introduced. Taking aircraft longitudinal short period system as an example,the analog-matching of the aircraft longitudinal equivalent system based on chaotic differential evolution algorithm was studied firstly and overcome the disadvantages of the conventional algorithms in the analog-matching of equivalent system. The simulation results show that the equivalent system by chaotic differential evolution algorithm is satisfied the various requirements in the analog-matching of equivalent system and the requirement of level 1 flight qualities,and has obtained better analog-matching results. The usefulness and high effectiveness of the chaotic differential evolution algorithm in the analog-matching of aircraft equivalent system is proved.     

战斗机编队协同作战效能评估研究

在分析了编队协同作战特点的基础上,利用层次分析方法建立了编队协同作战效能评估指标体系。重点研究了信息优势、决策能力、协同能力和攻击能力对编队协同作战效能影响,并建立了这四个指标的评估模型。接下来,利用成对比较矩阵计算出了准则层中各因素的权重系数。最后对分别红蓝编队协同空战的作战模式进行了作战效能仿真分析。

Abstract：

Based on the analysis of formation cooperative combat＇s characteristic,the effectiveness evaluation frame of formation cooperative combat was established by AHP. The factor that can influence the effectiveness of formation cooperative combat was emphatically studied. At the same time,the model of information predominance,decision-making capability,cooperative capability and attacking capability was established. Then,the weight of each factor was figured out by compare matrix. At last,the combat effectiveness evaluation of formation cooperative combat about red and blue was carried out.     

基于反馈线性化的船舶自动舵模糊滑模控制

针对船舶航向自动舵控制系统的非线性数学模型,应用基于微分几何的反馈线性化方法,将原非线性系统等价为完全可控型线性化模型,然后设计了滑模变结构控制器,并利用模糊控制器实现了滑模趋近律的参数自整定,设计方法简单可行。仿真结果表明,所设计的模糊滑模控制器能够快速准确地跟踪设定航向,并对参数摄动和外界风浪干扰具有很强的鲁棒性,同时消除了系统的抖振现象,优于传统的滑模控制。

Abstract：

According to the nonlinear model of ship autopilot system and using the feedback linearization procedure of differential geometry,an equivalent,fully controllable and linear model was derived via a homomorphism transformation and a fuzzy reaching law sliding mode controller was designed.The simulation results show that the controller designed here,which is superior to traditional sliding mode control,can track a desired course fast and accurately.It also exhibits strong robustness peculiarity to system uncertainties and avoiding chatting phenomenon.     

基于无线传输的非线性网络控制系统的模糊控制

考虑控制器与被控对象之间采用无线传输,且被控对象为非线性模型的一类网络控制系统,对其设计了稳定的模糊控制器。首先基于T-S模糊模型将对象线性化,并利用模糊主导子系统和主导控制规则,简化了模糊控制器的设计。其次,将闭环控制系统方程等效为与无线传输跳数相关的离散切换系统,并证明了闭环系统的稳定性。最后,通过一个仿真例子验证了文中方法的有效性。

Abstract：

Considering a class of networked control systems using wireless transmission between the controller and the controlled object,and with nonlinear controlled object,the stable fuzzy controller was designed.Firstly,based on T-S fuzzy model,the object was linearized.And the design of the fuzzy controller was simplified by using the fuzzy dominant subsystem and the dominant control rule.Secondly,the equation of the closed-loop control system was equal to the discrete switched system related to the hop count of the wireless transmission.Finally,a simulation example was given to demonstrate the effectiveness of the proposed method.     

一种截窗查询的多障碍物快速碰撞检测算法

依赖于地理信息系统的越野路径规划,由于存在大量分布不规律的环境障碍物,严重影响路径规划的计算速度,借鉴截窗查询的思想,给出了基于一维数据结构的矩形截窗查询算法,该算法有效减少了规划过程所需碰撞检测的障碍物个数,大幅提高规划速度,在环境障碍物动态更新的情况下,其性能优于区间树的截窗查询方法。

Abstract：

Path planning based on GIS is a fundamental problem in many applications. It is the main problem affecting the planning time because of the multi-obstacles in field environment. A novel rectangle windowing query method was proposed in order to improve the compute efficiency of collision free test. The method reduces the numbers of obstacles needed to test and speeds the planning process, and is more suitable with the dynamic environment of obstacles changing than the interval tree method.