屏蔽二进阵列偶的构造方法研究

准最佳、双准最佳屏蔽二进阵列偶具有良好周期相关特性,是对最佳屏蔽二进阵列偶的扩充.为深入完善屏蔽二进阵列偶理论,在最佳二进阵列偶、准最佳和双准最佳二进阵列偶构造方法研究的基础上,给出了3种最佳、准最佳、双准最佳屏蔽二进阵列偶的构造方法,即准最佳、双准最佳屏蔽阵列偶的复合构造法,利用最佳与准最佳屏蔽二进阵列偶来构造最佳屏蔽二进阵列偶,以及利用准最佳和双准最佳屏蔽二进阵列偶来构造准最佳屏蔽二进阵列偶.     

最佳四进阵列偶构造方法研究

本文给出了三种构造最佳四进阵列偶的方法,其中包括采用周期互补二进阵列偶直接构造最佳四进阵列偶的方法,由最佳四进阵列偶和准最佳阵列偶交替递归构造最佳四进阵列偶的方法,采用几乎最佳四进阵列偶与最佳四进阵列偶递归构造最佳四进阵列偶的方法.     

准最佳二进阵列偶

本文在最佳二进阵列、准最佳二进阵列和最佳二进阵列偶的基础上,定义了一种新的最佳信号,即准最佳二进阵列偶.讨论了准最佳二进阵列偶的体积、变换性质,并对其进行了Fourier频谱分析,得到了部分有益的结果.还用计算机穷举搜索出了体积从2~24的准最佳二进阵列偶.     

准最佳屏蔽二进阵列偶理论研究

本文在最佳屏蔽二进阵列偶的基础上定义了一种新的最佳循环相关信号,即准最佳屏蔽二进阵列偶,讨论了准最佳屏蔽二进阵列偶的体积、变换性质,通过分析其Fourier频谱特性和研究其存在的必要条件,为计算机搜索最佳屏蔽二进阵列偶奠定了理论基础,并给出了由计算机搜索出的若干小体积准最佳屏蔽二进阵列偶.     

具有良好并元相关特性的序列

该文对并元互补码偶族作出进一步的研究。首先提出了新的区组设计的概念一并元加族偶,然后给出了并元互补码偶族与区组设计的等价关系,应用这一等价关系给出了并元互补码偶族存在的必要条件,最后给出了并元互补码偶族的若干构造方法。     

一种构造最佳四元二维互补阵列的新方法

该文利用最佳四元二维互补阵列和准最佳四元二维互补阵列的性质,给出了一种构造最佳四元二维互补阵列的新方法。使用这种方法,可以将一个二维的st 阶的最佳四元二维互补阵列和一个2st 阶的准最佳四元二维互补阵列,构造成新的一类二维4st 阶和2s2t 阶的最佳四元二维互补阵列。     

一种构造最佳二进阵列偶的新方法

利用最佳二进阵列偶和准最佳二进阵列的性质,给出了一种构造最佳二进阵列偶的新方法。使用这种方法,可以将一个n维N1N2…Nn阶的最佳二进阵列偶(X,Y)和一个n维N1N2…Nn阶的准最佳二进阵列,构造成新的一类n维2N1?N2…Nn阶和4N1N2…Nn阶的最佳二进阵列偶(X*,Y*)。*     

双准最佳二进阵列偶的研究

本文定义了一种新的最佳信号即双准最佳二进列偶，讨论了双准最佳二进阵列偶的变换性质；用计算机搜索出一些小体积的双准最佳二进阵列偶；并给出了构造双准与准最佳二进阵列偶的方法。     

几乎最佳二进阵列偶理论研究

本文提出了一种新的周期循环相关信号,即几乎最佳二进阵列偶.文中给出了其定义,并研究了它的变换性质,为了减少搜索范围,提高计算机搜索效率,文中研究给出了一些几乎最佳二进阵列偶存在的组合允许条件,在此基础上,利用计算机搜索出了若干小体积的几乎最佳二进阵列偶.搜索结果表明几乎最佳二进阵列偶具有很高的能量效率,因而可以作为同步码或多用户码应用到工程中.     

最佳二元序列偶族的构造方法

文中利用并元变换的不进位性质,给出了一种构造最佳周期互补二元序列偶族的新方法。使用这种方法,可以用已知的最佳周期互补二元序列偶族构造出更多的性能相同的新的最佳周期互补二元序列偶族,如原最佳周期互补二元序列偶族为长度为n,个数为q,则新生成最佳周期互补二元序列偶族的个数为qn,为实际工作中提供了更多的最佳信号。     

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.     

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     

Call for Papers—Feature Topic,Vol.12,No.7,2015

正Information Centric Networking Information-Centric Networking(ICN) is an emerging direction in Future Internet architecture research,gaining significant tractions among academia and industry.Aiming to replace the conventional host-to-host communication model by a data-centric model,ICN treats data content as the first