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1.
针对陆军合成部队火力打击效能评估中属性值信息存在一定缺失的问题,提出利用直觉模糊相似度函数方法对残缺属性值信息进行补充。建立火力打击行动效能评估指标,给出群决策模型及其方法步骤,并以实例对模型进行求解。结果表明:该方法模型简捷方便,能广泛适用于属性值信息残缺的群决策,较好地处理信息化条件下存在一定信息残缺的作战能力评估问题。  相似文献   

2.
针对直觉三角模糊数向量投影引发的多属性决策问题,提出了一种属性权重确知、且属性值以直觉三角模糊数形式给出的多属性决策方法。从向量投影的角度出发,给出2个直觉三角模糊数向量之间投影的算法,进而利用各个方案的加权属性值在模糊理想解上的投影值大小对方案进行排序,并用实例进行验证。实验结果表明:该方法简洁明了、思路清晰,具有一定可行性和实用性,易于在实际应用中推广。  相似文献   

3.
针对区间直觉模糊多属性群决策中属性权重信息事先不能确知的问题,提出一种基于区间直觉模糊混合平均算子(IIFHA)区间直觉模糊多属性群决策方法。给出属性权重确定的方法,列出群决策计算方法与步骤,并通过实例进行验证。结果表明:该方法是正确、有效的,能为相关人员提供一定的参考。  相似文献   

4.
针对机动导弹发射阵地的评估选择具有发射地点数量多、信息不确定以及评估时间紧迫的特点,提出了一种基于信息熵和改进SUEOWA算子的机动导弹发射阵地评估方法。基于精确值、区间数和模糊数3种指标属性,利用概率模型将区间数映射到不完全信息模糊数表中,利用单个专家评估的不确定拓展有序加权平均算子(SUEOWA)和专家组评估的不确定语言混合集结算子(GULHA)进行评估与排序,同时采用基于信息熵的多属性评估方法对属性值为精确值的对象进行排序,并将不同特性指标的排序结果进行融合,得到发射阵地的综合排序。实例分析结果证明:该方法运算过程快速,为实际导弹发射战场指挥员的决策提供快速参考和辅助作用。  相似文献   

5.
针对评估指标和评估专家权重未知的中型合成营作战能力评估问题,从作战要素的角度建立一种评估指标体系.利用熵权法获得评估指标和专家的权重信息,在传统多准则优化妥协决策(vlse kriterijumska optimizacija i kompromisno resenje,VIKOR)思想的基础上,结合直觉模糊数的计算法则,利用直觉模糊加权平均算子(intuitionistic fuzzy weighted average operator,IFWA)对多个专家的评估结果进行集成,进而对每个合成营的作战能力进行排序,并将其结果与利用TOPSIS方法获得的结果进行比较.结果表明,该模型可靠、准确、稳定.  相似文献   

6.
在武器系统作战效能的评价过程中,引入了直觉模糊数,采用若干专家对系统作战效能的指标进行了打分,并给出了各指标的权重.同时利用直觉模糊有序加权平均算子(IFOWA算子)对各指标的得分值进行了集成,通过线性加权确定了各指标的权重,计算得到了系统作战效能的评估值.评估过程和结果体现了引入直觉模糊数和IFOWA算子的科学性、合理性和可靠性.  相似文献   

7.
基于区间直觉模糊决策的多无人机任务分配方法   总被引:1,自引:0,他引:1       下载免费PDF全文
针对多无人机在不确定环境下面向SEAD 约束的任务分配问题,提出一种基于区间直觉模糊决策的多无 人机任务分配方法。构建面向不确定环境下无人机的任务分配数学模型,将无人机和任务的不确定信息用区间直觉 模糊数表示;借助TOPSIS 原理,考虑区间直觉模糊数的曼哈顿距离和犹豫度对区间直觉模糊数进行比较,采用改 进后的离散差分进化算法求解得到最优的任务分配方案。结果表明:该分配模型合理,算法具有较好的收敛性。  相似文献   

8.
针对传统的直觉模糊多属性决策方法中采用直觉模糊熵赋权法的不足,提出了直觉模糊条件下离差最大化赋权方法,构造了直觉模糊数距离公式并对该公式正确性进行了证明,给出了采用了新的赋权方法的多属性决策方法的具体步骤。并以实例验证了新的决策方法的合理有效性。分析结果表明:基于离差最大化的直觉模糊多属性决策方法与传统的基于熵权的直觉模糊多属性决策方法相比,不但考虑了指标值自身的信息,同时考虑了不同方案指标值间的差异,决策结果更加可靠。  相似文献   

9.
介绍了Hsu的SAM法和Lee的OAM法的群一致度计算方法是以梯形模糊数代表专家意见为基础进行计算的,并分析了这两种方法存在的不足.在此基础上,运用基于相等期望值的相似集成法对梯形模糊数进行计算来解决群决策意见一致度计算问题,该方法既可以保留两种方法的计算思想,又可以提高计算结果的精度.最后通过武器系统作战需求评估范例计算验证了该方法的可行性与有效性.  相似文献   

10.
运用模糊数扩展了传统的导出有序几何加权(IOWG)算子.提出了模糊数-导出有序几何加权(FN-IOWG)算子,其参数值和权值皆采用模糊数表示,通过模糊数的运算得出聚合值.随后基于提出的FN-IO-WG算子和模糊理想解和模糊负理想解,提出了一种新的多准则群决策方法.最后通过一个实例说明了该方法的可行性和实用性.  相似文献   

11.
Tetraacetyldibenzylhitane (TADBIW) was subjected to debenzylation by nitrosating with inorganic materials available commercially to synthesize tetraacetyldinitrosohexaazaisowurtzitane (TADNSIW). TADNSIW was purified, and its structure was determined by FTIR, 1H NMR, MS and element analysis. The debenzylation reaction of TADBIW gave quantitative benzaldehyde as a by-product. This indicates that the reaction produces an imine cation as an intermediate. Hexanitrohexaazaisowurtzitane (HNIW) was prepared from unpurified TADNSIW with the yield over 96.0 % and the purity more than 98.0 %. And the mechanism of the reaction from TADNSIW to HNIW is proposed to be oxidation of nitroso and nitration of acetyl on the molecule of TADNSIW, This reaction system involved is simple, and the reaction can complete within a short time and under mild conditions. The product can be easily to separate and the waste disposed readily.  相似文献   

12.
The technique of watermarking has been introduced into 2D vector maps for many potential applications such as protecting the copyright of important GIS (geographical information system) data and tracing the data source of military maps. In most previous works, although the validity of the map data could be preserved during the embedding procedure, the shape-distortions of the map elements are usually neglected which would tend to degrade the invisibility of the watermarking schemes. A shape-preserving algorithm for watermarking 2D vector maps is presented in this paper. A 1D distance sequence extracted from the original map is adopted as the cover data instead of 2D coordinates. A watermark bit is represented by changing the distributions of the cover data. The embedding procedure induces lower shape-distortions than in former works. Experimental results indicate better invisibility of the proposed scheme, as well as its robustness to certain attacks such as map simplification, interpolation, additive noise and most geometric transforms.  相似文献   

13.
Open rule-setting method advanced in this paper concentrates on providing designers of engines with a convenient way to express their design innovations and develop the expected prototypes in the early CAD stage, and constitute effective models for the following analysis process of CAE and CAPP. The problems arisen in the process of conceptual design with the traditional experience-based development method are analyzed. Based on those analyses, open rule-setting method is presented and some associated technical problems are discussed. The functional framework of open rule-setting system was built as software engineering methods. The speciality of the engine product as a kind of complex product and the requirement of the engine product based on its structural particularity to rule-setting system are considered carefully. A demonstration is supplied to illustrate how the open rule-setting method enhances the efficiency and quality of the engine conceptual design.  相似文献   

14.
By analyzing the working principle of Linux network device driver, discussing the Linux network driver structure and its key technologies, the general network driver structure and its design methodologies in Linux system are summarized. Through modifying the network device driver of Linux device driver 3rd version snull, c and improving the COW technology, the Zero-Copy technology in Linux (kernel version 2.6.11 ) is implemented. In the end, the success test tells us that the thorough analysis of network device driver is the foundation of many applications, and it also provides a certain improvement to a lot of real applications, even to military application development.  相似文献   

15.
For measuring velocity and impacting position of single fragment of warhead, a non-contact measuring method is proposed, in which a six-light-screen array, a position indicator, a multi-channel chronograph and a computer are used.The principle of measurement is described. The key device of the system is a light screen array sensor which consists of six light screens allocated with certain geometrical parameters. When the fragment flies through the light screen array, the time of passing through each of the screens is recorded by the multi-channel chronograph. According to the time data and the geometrical parameters of the array, the velocity vector and the location of the fragment can be calculated immediately. The presented method can be used to locate the fragment and to measure the real velocity on its flying direction. It can also be used to measure the velocity of a fragment swarm after the system is engineered further.  相似文献   

16.
By analyzing the influencing factors of part quality making of sheet alloy of titanium by vibra cutter, the shape of upper reamer is set as cylinder and wedge-shaped form, and the lower reamer as plain and hemicycle form, and its main structural parameters are defined as well. Then it is validated further that such improved vibra cutter reamer can be used to process curve-edged parts of titanium alloy sheet. The experimental result shows that the titanium alloy sheet parts processed by above equipment have no sharpen angles for convex parts and evident crevasse of concave-edged part. In summary, such improvement can eliminate the free-waved edge and improve the manufacture quality of titanium alloy sheet parts greatly.  相似文献   

17.
阐述了数码电子雷管中,点火药剂细结晶三硝基间苯二酚铅(LTNR)的制备工艺;从点火药剂的种类、加入黏合剂的质量分数、桥丝直径、点火头的电阻值、防潮漆的蘸涂等方面对点火头性能的影响因素进行了探讨;通过震动试验、并联起爆试验、延期精度检测与考核,试验结果表明:一次性合成的细结晶LTNR是制造数码电子雷管点火头较为理想的点火药剂,按技术要求生产的点火头性能指标能够满足行业标准要求。  相似文献   

18.
The initiating behavior of fine-grained explosives by small flyer is studied. The diameter of small flyer in this device is 1 ram. The test results indicate that the granularity of explosives has great effect on its flyer initiating sensitivity.The flyer initiating sensitivity of the fine-grained explosives is higher and the critical initiating energy is lower than that of common explosives. For common explosive, the flyer initiating sensitivity increases as the density is reduced. But for the fine-grained explosive, the test results are exactly opposite.  相似文献   

19.
Multi-laser-target tracking is an important subject in the field of signal processing of laser warners. A clustering method is applied to the measurement of laser warner, and the space-time fusion for measurements in the same cluster is accomplished. Real-time tracking of multi-laser-target and real-time picking of multi-laser-signal are introduced using data fusion of the measurements. A prototype device of the algorithm is built up. The results of experiments show that the algorithm is very effective.  相似文献   

20.
The nonlinear dynamic model of spinning ballistic missiles is established during the first boosting phase of the missile. Based on the conventional backstepping sliding mode control and the assumption of a two time-scale separation of missile dynamics, a graded sliding mode controller is designed with two sub-sliding surfaces which have invariability to external disturbances and parameter perturbations, and a matrix which comprises three first order low pass filters is introduced to prevent "explosion of terms". Owing to the upper bounds of the uncertainties are difficult to obtain in advance, adaptive laws are introduced to estimate the values of the uncertainties in real-time. Eventually, the numerical simulation results given to show the proposed controller can ensure the steady flight of missiles.  相似文献   

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