基于A*算法的坦克CGF全局路径规划

提出了一种应用A*启发式搜索算法对虚拟战场中坦克CGF(Computer Generated Forces)实体进行全局路径规划的方法,同时对A*算法进行了改进,利用二叉堆的结构组织OPEN表,大大加速了A*算法的搜索效率。所提方法可以处理较大规模的战场地形,具有较高的效率。     

基于改进AHP-FCE算法的导弹旅指挥效能评估

针对传统AHP-FCE评估法确定指标隶属函数困难的情况,提出改进AHP-FCE算法,在综合考虑专家评估团队成员知识结构、研究领域、工作岗位等因素对评估结果影响的基础上,利用专家权重因子对模糊关系矩阵进行修正,提高模糊关系矩阵构建的合理性和实用性。分析导弹旅作战任务和作战指挥活动特点,构建导弹旅作战指挥效能评估指标体系,并运用改进AHP-FCE法实施综合评估,验证了方法的有效性。同时,针对评估结果分析重要参数的相互关系,提出参数设置建议。     

基于 ANP 的作战筹划能力模糊评价方法

基于网络层次分析（ANP）的模糊评价方法,通过对作战筹划能力进行分析评价,为提升作战筹划能力提供参考。首先运用 ANP 法,提出包含4个方面18个指标的评估指标体系,构建作战筹划能力评估模型,然后通过模糊综合评价法对作战筹划能力进行评价。该评估模型探索了筹划能力评价的方法,为作战筹划能力评价工作提供新思路。     

Approximations for heavily loaded G/GI/n + GI queues

Motivated by applications to service systems, we develop simple engineering approximation formulas for the steady‐state performance of heavily loaded G/GI/n+GI multiserver queues, which can have non‐Poisson and nonrenewal arrivals and non‐exponential service‐time and patience‐time distributions. The formulas are based on recently established Gaussian many‐server heavy‐traffic limits in the efficiency‐driven (ED) regime, where the traffic intensity is fixed at ρ > 1, but the approximations also apply to systems in the quality‐and‐ED regime, where ρ > 1 but ρ is close to 1. Good performance across a wide range of parameters is obtained by making heuristic refinements, the main one being truncation of the queue length and waiting time approximations to nonnegative values. Simulation experiments show that the proposed approximations are effective for large‐scale queuing systems for a significant range of the traffic intensity ρ and the abandonment rate θ, roughly for ρ > 1.02 and θ > 2.0. © 2016 Wiley Periodicals, Inc. Naval Research Logistics 63: 187–217, 2016     

Approximation algorithms for sequential batch‐testing of series systems

We introduce and study a generalization of the classic sequential testing problem, asking to identify the correct state of a given series system that consists of independent stochastic components. In this setting, costly tests are required to examine the state of individual components, which are sequentially tested until the correct system state can be uniquely identified. The goal is to propose a policy that minimizes the expected testing cost, given a‐priori probabilistic information on the stochastic nature of each individual component. Unlike the classic setting, where variables are tested one after the other, we allow multiple tests to be conducted simultaneously, at the expense of incurring an additional set‐up cost. The main contribution of this article consists in showing that the batch testing problem can be approximated in polynomial time within factor , for any fixed . In addition, we explain how, in spite of its highly nonlinear objective function, the batch testing problem can be formulated as an approximate integer program of polynomial size, while blowing up its expected cost by a factor of at most . Finally, we conduct extensive computational experiments, to demonstrate the practical effectiveness of these algorithms as well as to evaluate their limitations. © 2016 Wiley Periodicals, Inc. Naval Research Logistics 63: 275–286, 2016     

带有模糊干扰观测器的高超声速飞行器一体化制导控制方法

为充分利用高超声速飞行器在俯冲段的质心运动与绕质心运动之间的耦合作用和飞行过程中的不确定性,基于模糊干扰观测器提出三维一体化制导与控制问题。根据飞行器的动力学方程以及飞行器-目标的视线角相对运动方程,推导出适用于倾斜转弯控制的一体化制导控制模型。针对模型中的不确定性采用模糊干扰观测器进行补偿,并使用块动态面方法设计一种一体化制导控制律。通过选取适当的李雅普诺夫函数证明闭环系统状态的一致毕竟有界性。仿真结果验证了该一体化制导控制方法的有效性和鲁棒性。     

基于Vague集模糊值线性序法的雷达抗干扰效能评估

针对已有评估方法存在的不足,提出了一种基于Vague集模糊值线性序法的雷达抗干扰效能评估方法。分析了影响雷达抗干扰效能的指标因素,给出了各评价指标的模糊值表示,建立了基于Vague集模糊值线性序法的雷达抗干扰效能综合评价模型,得到了评价其效能的排序方法。最后通过实例分析验证,该方法评估结果准确,具有一定参考价值。     

空袭中预警机阵位选择及航线规划

针对空袭作战时对预警机的需求问题,以空袭作战想定为背景,构建了预警机阵位选择的估算模型;以预警机实时探测能力为基础,给出了预警机航线规划的定量公式,并在其中考虑了工作模式变化对其影响;通过仿真,分析了主要参数与预警机阵位和航线的关系,其结果具有一定的实用价值。     

三关节机器人的神经网络补偿自适应控制器设计

三关节机器人广泛用于工业生产、轮式或履带式排爆机器人,为了补偿由于机器人结构参数、作业环境干扰等不确定性因素造成的机器人动力学模型的不确定性,将机器人动力学模型分解为名义模型和误差模型两部分,其误差模型采用RBF神经网络进行补偿,得到其估计信息,神经网络的输出权值根据Lyapunov稳定性理论采用自适应算法进行调整。所设计的神经网络补偿自适应控制器解决了不确定性机器人动力学系统控制器设计的不确定性问题,同时,通过定义Lyapunov函数,证明了控制器能渐近、稳定地跟踪期望轨迹。机器人的3个关节在控制器的作用下,约在5 s时达到期望轨迹,神经网络约在5 s时逼近机器人动力学模型的误差模型,实验结果表明了机器人关节对期望轨迹具有良好的轨迹跟踪性能。     

基于多级模糊综合评判法的指挥模拟训练效果评估?

针对指挥模拟训练效果评估的方法进行了研究,通过定量分析的方式将多级模糊综合评判法引入到对指挥员训练效果的评价中,在分析指挥员指挥能力构成的基础上建立起了指挥模拟训练效果评估指标体系,并构建了指挥模拟训练效果评估基本模型。最后,通过算例对模型进行了总体验证,取得了与实际结果相一致的结论,能够有效对指挥员指挥模拟训练效果作出科学客观的评价。