基于QABC-IFMADM算法的有人/无人机编队作战威胁评估

信息化条件下有人/无人机编队作战环境具有高度不确定性,如何对目标进行快速有效的威胁评估成为亟待解决的问题.在直觉模糊集框架下,研究决策者对方案具有偏好,目标属性值为区间数且权重未知的评估问题,提出一种量子蜂群（QABC）优化属性权重的直觉模糊多属性决策（IFMADM）的威胁评估方法.首先,建立方案偏好模型;其次,综合考虑客观优化排序和决策者方案偏好信息,建立主客观最优属性权重优化模型,并采用量子蜂群算法优化属性权重,使得属性权重更准确地反映实际情况.最后,通过编队对地作战威胁评估算例验证了所提方法的合理性与有效性.     

权重信息不完全的混合型多属性决策方法研究

针对属性权重信息不完全且属性取值为精确数、语言标度、区间数、直觉模糊数、区间直觉模糊数的混合型多属性决策问题,根据五种不同形式的属性值规范化定义,建立每种形式下属性值之间的相关系数。基于偏爱程度的加权平均(PDWA)算子和逼近理想解(TOPSIS)法构建单目标最优化模型求出各属性的权重,通过对属性值和属性权重的线性集结,得到排序结果。最后通过数值算例,验证了该方法的可行性和操作性。     

舰艇编队超视距反导威胁评估指标主观权重确定

针对舰艇编队超视距反导威胁评估指标主观权重确定问题,建立威胁评估指标体系。分别针对决策者给出的语言型、效用值型、序关系值型、模糊互补判断矩阵型、互反判断矩阵型以及区间数型指标权重信息建立了指标权重确定的最优化模型,将主观指标权重确定问题建模为多目标约束优化问题,在得出各种类型权重信息矩阵的规范化系数的基础上采用线性加权的方法将其变为单目标约束优化问题,并给出了指标主观权重解。仿真结果显示,该方法能够直接集结决策者给出的多种类型的指标权重确定信息,且能够准确地得到舰艇编队超视距反导威胁评估主观权重,计算量小、易于进行工程推广,能够为舰艇编队超视距反导作战辅助决策系统设计提供一定的理论支持。     

面向海洋环境的装备选优与排序方法

针对海洋环境下的武器装备选择问题,将其转化为带方案偏好、属性权重完全未知且属性值为区间数形式的多属性决策问题。基于主观偏好与客观属性值偏差最小化的思想,提出一个单目标二次优化模型,并利用LINGO软件进行模型求解,求得属性权重。通过对属性值和属性权重的线性集结,得到排序结果。最后通过数值算例,验证了该方法的可行性和操作性。     

预警机威胁度的区间型不确定多属性决策方法

针对作战中可能面临敌方不同机型预警机威胁的情景,以及威胁属性等级确定的复杂性和不确定性,决策过程中的各属性值以区间数的形式给出.在研究预警机系统功能基础上,采用不确定多属性决策理论中的逼近理想点排序法,解决属性值为区间数的多属性决策问题.根据属性集的规划,提出预警机威胁等级评估方法,建立了预警机威胁度排序的数学模型,从...     

区间直觉模糊集改进记分函数在供应商选择中应用

定义了区间直觉模糊集加权得分函数和加权精确函数,解决了得分函数和精确函数无法处理带权值计算的问题,提出了属性权重确知且属性值以区间直觉模糊数形式给出的多目标决策方法.实例分析证明,该方法是解决多目标决策问题的一种新方法,在供应商选择决策中具有推广和实用价值.     

考虑主观偏好信息的辐射源威胁评估方法

基于作战实际情况，提出一种新的辐射源威胁评估方法。决策群体针对当前战场情况，凭借其作战经验分别给出不同形式的主观偏好信息。采用将偏好信息一致化为效用值的方法，集结出决策群体的主观偏好信息。建立主客观信息相集成的辐射源威胁评估模型，然后通过二次规划模型计算属性权重，最后通过一个排序公式得出辐射源的威胁评估值和排序结果。所建立的威胁评估模型更符合作战的实际过程，算例表明了方法的有效性。     

直觉模糊信息下基于VIKOR和三支决策的多目标威胁评估方法

针对传统多目标威胁评估方法通常是二支决策,只能得到目标威胁排序,需要主观地划定威胁等级与选择作战目标数,不适应于复杂动态任务环境的问题,提出直觉模糊信息下基于VIKOR和三支决策的多目标威胁评估方法.首先,对动态直觉模糊威胁评估信息进行集结并求取属性权重;然后,通过VIKOR方法求取目标决策所需的条件概率;最后,通过评估信息构造各属性下目标的损失函数矩阵,集结得到目标的综合损失函数矩阵,计算综合阈值,得到决策规则.算例分析表明,所提方法能够有效地处理动态不确定目标态势信息,将传统方法的二支排序结果转变为三支分类结果;可以依据目标态势信息客观地选取作战目标.     

基于IFHPOWA算子的空中目标威胁评估变权模型

为提高防空威胁评估模型处理模糊性和不确定性信息的能力,增加威胁评估结果的时效性和实用性,将评估属性信息转换为直觉模糊集信息。定义了直觉模糊优先有序加权平均（IFHPOWA）算子,基于广义混合算子及韦伯-费希纳感知定律确定威胁评估模型变权函数形式,建立威胁评估模型权重产生函数,给出确定其关联权重向量的方法,依据威胁评估准则确定合理的威胁评估属性及各属性的优先关系,进而建立基于IFHPOWA算子的空中目标威胁评估变权模型并详细给出该模型求解步骤。通过不同实例的比较分析说明该模型的合理性和有效性。     

不确定多属性决策的干扰目标威胁排序

分析了影响电子战通信干扰目标威胁排序的因素,构建了评估目标威胁程度的指标体系.采用区间数来表示属性值,利用离差最大化的方法获得权重,通过可能度排序的方法求出结果,最后通过算例分析,说明利用该方法进行威胁排序有利于提高决策的准确性.     

Resolution Enhancement Technology:Integrated Process Solutions using OPC

DUV lithography, using the 248 nm wavelength, is a viable manufacturing option for devices with features at 130 nm and less. Given the low kl value of the lithography, integrated process development is a necessary method for achieving acceptable process latitude. The application of assist features for rule based OPC requires the simultaneous optimization of the mask, illumination optics and the resist.Described in this paper are the details involved in optimizing each of these aspects for line and space imaging.A reference pitch is first chosen to determine how the optics will be set. The ideal sigma setting is determined by a simple geometrically derived expression. The inner and outer machine settings are determined, in turn,with the simulation of a figure of merit. The maximum value of the response surface of this FOM occurs at the optimal sigma settings. Experimental confirmation of this is shown in the paper.Assist features are used to modify the aerial image of the more isolated images on the mask. The effect that the diffraction of the scattering bars (SBs) has on the image intensity distribution is explained. Rules for determining the size and placement of SBs are also given.Resist is optimized for use with off-axis illumination and assist features. A general explanation of the material' s effect is discussed along with the affect on the through-pitch bias. The paper culminates with the showing of the lithographic results from the fully optimized system.     

Cost-effective test solutions for smart card and other integrated flash applications

From its emergence in the late 1980s as a lower cost alternative to early EEPROM technologies, flash memory has evolved to higher densities and speedsand rapidly growing acceptance in mobile applications.In the process, flash memory devices have placed increased test requirements on manufacturers. Today, as flash device test grows in importance in China, manufacturers face growing pressure for reduced cost-oftest, increased throughput and greater return on investment for test equipment. At the same time, the move to integrated flash packages for contactless smart card applications adds a significant further challenge to manufacturers seeking rapid, low-cost test.     

Theoretical analysis of the relationship between the Brillouin gain coefficient and the strain in the optical-fiber sensors

The relation between the power of the Brillouin signal and the strain is one of the bases of the distributed fiber sensors of temperature and strain. The coefficient of the Bfillouin gain can be changed by the temperature and the strain that will affect the power of the Brillouin scattering. The relation between the change of the Brillouin gain coefficient and the strain is thought to be linear by many researchers. However, it is not always linear based on the theoretical analysis and numerical simulation. Therefore, errors will be caused if the relation between the change of the Brillouin gain coefficient and the strain is regarded as to be linear approximately for measuring the temperature and the strain. For this reason, the influence of the parameters on the Brillouin gain coefficient is proposed through theoretical analysis and numerical simulation.     

An improved parallel thinning algorithm with two subiterations

The parallel thinning algorithm with two subiterations is improved in this paper. By analyzing the notions of connected components and passes, a conclusion is drawn that the number of passes and the number of eight-connected components are equal. Then the expression of the number of eight-connected components is obtained which replaces the old one in the algorithm. And a reserving condition is proposed by experiments, which alleviates the excess deletion where a diagonal line and a beeline intersect. The experimental results demonstrate that the thinned curve is almost located in the middle of the original curve connectivelv with single pixel width and the processing speed is high.     

Novel fiber-optical interferometer with miniaturized probe for in-hole measurements

Today, micro-system technology and the development of new MEMS （Micro-Electro-Mechanical Systems） are emerging rapidly. In order for this development to become a success in the long run, measurement systems have to ensure product quality. Most often, MEMS have to be tested by means of functionality or destructive tests. One reason for this is that there are no suitable systems or sensing probes available which can be used for the measurement of quasi inaccessible features like small holes or cavities. We present a measurement system that could be used for these kinds of measurements. The system combines a fiber optical, miniaturized sensing probe with low-coherence interferometry, so that absolute distance measurements with nanometer accuracy are possible.     

Study of waveguide coupling efficiency in hybrid silicon lasers

This paper presents a new method to increase the waveguide coupling efficiency in hybrid silicon lasers. We find that the propagation constant of the InGaAsP emitting layer can be equal to that of the Si resonant layer through improving the design size of the InP waveguide. The coupling power achieves 42% of the total power in the hybrid lasers when the thickness of the bonding layer is 100 nm. Our result is very close to 50% of the total power reported by Intel when the thickness of the thin bonding layer is less than 5 nm. Therefore, our invariable coupling power technique is simpler than Intel＇s.     

A rigorous proof of MIMO channel capacity’s increase with antenna number

It is well known that adding more antennas at the transmitter or at the receiver may offer larger channel capacity in the multiple-input multiple-output（MIMO） communication systems. In this letter, a simple proof is presented for the fact that the channel capacity increases with an increase in the number of receiving antennas. The proof is based on the famous capacity formula of Foschini and Gans with matrix theory.     

Teleportation of an arbitrary unknown N-qubit entangled state under the controlling of M controllers

A new quantum protocol to teleport an arbitrary unknown N-qubit entangled state from a sender to a fixed receiver under M controllers(M < N) is proposed. The quantum resources required are M non-maximally entangled Greenberger-Home-Zeilinger (GHZ) state and N-M non-maximally entangled Einstein-Podolsky-Rosen (EPR) pairs. The sender performs N generalized Bell-state measurements on the 2N particles. Controllers take M single-particle measurement along x-axis, and the receiver needs to introduce one auxiliary two-level particle to extract quantum information probabilistically with the fidelity unit if controllers cooperate with it.     

Diode-end-pumped Nd:YVO4/LBO lasers with 4.2W continuous-wave output at 457 nm

A continuous-wave (CW) 457 nm blue laser operating at the power of 4.2 W is demonstrated by using a fiber coupled laser diode module pumped Nd: YVO4 and using LBO as the intra-cavity SHG crystal With the optimization of laser cavity and crystal parameters, the laser operates at a very high efficiency. When the pumping power is about 31 W, the output at 457nm reaches 4.2 W, and the optical to optical conversion efficiency is about 13.5% accordingly. The stability of the out putpower is better than 1.2% for 8 h continuously working.     

Call for Papers

正Wireless Body-area Networks The last decade has witnessed the convergence of three giant worlds:electronics,computer science and telecommunications.The next decade should follow this convergence in most of our activities with the generalization of sensor networks.In particular with the progress in medicine,people live longer and the aging of population will push the development of wireless personal networks