拼接型长线列红外双波段图像实时传输系统

探讨了一种多模块拼接型长线列红外双波段图像实时传输系统的原理、结构和特点。针对红外成像探测系统的要求,设计了一种基于FPGA的红外双波段图像实时传输方案,并采用Aurora8B/10B协议和PCI Express(PCI-E)协议实现。实验结果表明,该方案能很好地解决拼接型长线列红外双波段图像的实时传输问题,为下一步图像融合、目标探测提供前提保证。     

基于SoC的红外双波段图像融合系统的设计

红外中波与长波图像实时融合在实际中应用广泛,研究了中波与长波红外图像的实时融合技术,设计了一种以FPGA和高性能DSP为核心、适合嵌入双波段红外热像仪的实时图像融合处理系统,介绍了系统的基本设计原理、各部分的功能.     

红外视频实时网络采集系统的设计与实现

针对红外搜索跟踪系统中图像传输的特殊要求,提出了一种基于FPGA的网络视频采集系统的设计方案与实现过程.系统以FPGA作为核心处理器与STM32等外围控制芯片协同工作,实现红外搜索跟踪系统中的红外图像的实时采集.相对于现有的视频采集系统,该系统具有稳定性高、传输距离远,数据量大、传输延时小等特点.     

一种双/多波段红外目标融合检测方法

针对双/多波段红外目标检测问题,提出了一种基于自适应加权投票融合准则的红外目标融合检测方法。该方法首先对双/多波段红外传感器进行图像配准,然后对单传感器红外图像进行处理,得到单传感器目标检测结果,最后使用提出的自适应加权投票融合准则,对单传感器目标检测结果进行融合,得到最终判决。实验结果显示,该算法能在较大程度上降低目标检测过程中的不确定性,从而提高了系统的检测性能,同单波段检测结果和其他的融合结果相比,该方法能有效地降低漏警概率和虚警概率;并且该方法易于实现,并在实际工程中得到了应用。     

一种基于LVDS的红外图像长距离传输系统设计

为实现红外图像数据长距离传输,设计了一种基于LVDS高速串行链路的系统.LVDS传输系统既符合长距离实时红外图像数据传输的要求,又降低了互联总线的数量,减小了系统互联的复杂性和成本.在FPGA内实现LVDS传输需要的图像数据格式转换.     

基于DSP的红外搜索跟踪系统软件设计

针对双波段红外搜索跟踪系统任务需求,基于多核DSP的通用信号处理硬件平台,结合系统功能需求、算法需求及多核DSP硬件特征,设计了一种基于主从架构的多核DSP软件架构,并完成了搜索跟踪算法与应用软件的设计与实现,在红外搜索跟踪系统中进行了应用验证,试验证明,该技术可以满足系统对红外双波段图像任务功能的实时处理需求。     

一种基于FPGA的双波段实时红外图像融合系统

文章对当前实时图像融合技术和实现方法进行了综述,提出了一种采用FPGA设计的双波段实时红外图像融合系统的设计方法。该系统将核心算法、外设管理等功能单元集成在1片Virtex - II Pro FPGA上实现,并提供了I2C等接口通道,使系统更加紧凑、灵活、可靠和低功耗。对拟采用的拉普拉斯金字塔融合算法的复杂性、实时性、资源占用率等指标进行了评估,并对系统的双通道视频数据流同步、帧缓冲与数据的实时传输等关键功能单元的实现方法进行了介绍。     

反射内存网在红外图像实时生成系统中的应用

针对红外图像实时生成系统中帧图像数据传输的高实时性需求,提出了一种以反射内存为基础的红外图像数据实时传输方案,并给出了一种实时网络性能指标测试方法,基于该方法对反射内存网的实时指标进行了考核。实验表明：采用DMA数据读写模式、实时优先级的进程控制、非冗余传输模式,所提出的实时传输方案可满足红外图像数据传输的高实时性需求,同时,该方案具有模块化程度高,配置灵活,便于调试、扩充和升级等优点。     

扫描型红外焦平面探测器图像实时传输系统

探讨了一种扫描型红外焦平面探测器(IRFPA)图像实时传输系统的原理、结构及其实现。根据系统指标要求,提出了一种基于FPGA的红外图像实时传输系统,并利用光纤传输技术与USB协议来实现。该方案不仅实现了扫描型IRFPA图像的实时传输,而且实现了双模式显示,为之后图像融合、目标跟踪奠定了基础。     

大视场线扫红外图像的高速传输系统

探讨了一种大视场红外图像高速传输系统的原理、结构和实现等关键技术.针对红外成像探测系统的要求,提出了一种高速红外图像传输方法,并采用FPGA和双DSP实现.该方案解决了大视场红外图像高速传输、实时显示与处理的问题.实验表明,该系统工作可靠,应用方便,具有很高的实用价值.     

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.     

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.     

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