轰炸光电瞄准模型建立

国内现役主战轰炸机均未配备光电瞄准系统,其轰瞄设备为纯光学目视老设备,夜间及复杂气象条件下无法观测目标,不能完成精确轰炸,需要配备光电瞄准系统。为解决轰炸光电瞄准模型这一目前轰炸光电瞄准系统实现过程中待研究的关键技术问题,本文通过航行法下瞄准任务分析、轰炸目标在水平坐标系下坐标的计算、侧向瞄准距和纵向瞄准距的计算、轰炸光电瞄准机理、飞控参数解算算法、瞄准数据流分析等研究,建立了基于测距法的轰炸光电瞄准模型,分析了模型误差,确立了瞄准诸元预告、开舱、投弹时间的解算算法。结果表明,瞄准模型能够稳定解算瞄准诸元,控制飞控、预告、投弹指令输出。     

空对地精确攻击瞄准光电转塔系统设计

某些现役轰炸机均未配备能够实现全天候精确轰炸的光电瞄准系统,其轰瞄设备为纯光学目视老设备,夜间及复杂气象条件下无法观测目标,不能完成精确轰炸。为实现空对地的全天候精确攻击瞄准,本文根据国内光电转塔技术研究现状,设计了集热像仪、可见光摄像机和激光测距机于一体,通过对作用距离和稳定精度的计算和仿真,确立了光学接口板、稳定平台及控制电子箱等分系统的设计方案,并对稳定精度进行了仿真测试及校验。结果表明,本文设计的光电转塔系统可以实现空对地全天候的精确攻击瞄准,能够满足夜间及复杂气象条件下观测目标的要求,可以在现役机型上得到实际应用。     

轰炸光电瞄准系统现状与发展

光电瞄准系统正在取代传统型纯光学瞄准系统,成为满足全天候快速精确轰炸要求的新一代轰炸瞄准设备.主要从系统组成、系统模型及实现途径三方面给出了轰炸光电瞄准系统的应用现状,分析了轰炸光电瞄准系统的发展趋势(外形与载机共形、合并至分布式综合光电系统),从而为发展新型轰炸光电瞄准系统、提高信息化战争背景下轰炸作战能力提供了一定的理论依据.     

安全监控物联网感知层接入设备的硬件设计

基于一个安全监控物联网的架构设计方案,介绍了一种感知层接入设备的硬件设计实现.完成ARM嵌入式主控系统,硬件连接至接口扩展模块,满足数据采集、数据处理及转发的功能,以单芯片多功能的设计最大程度降低了硬件成本,实现了与大多数传感器的互连,具有可扩展性和可升级性.     

基于C8051F330的光电瞄准系统设计

针对半自动瞄准,设计了一种基于C8051F330单片机实现模糊控制的光电瞄准系统.分析了系统的构成与工作原理,进行了模糊控制器的设计,以及其硬件和软件实现.该系统能保证在不同工况下的自适应功能,实现了初始定向瞄准系统的数字化与自动化,提高了停零精度,缩短了瞄准准备时间.     

光学瞄准及自动跟踪系统设计

为提高激光通信、激光制导、激光雷达等光电系统的工作可靠性及自动化程度,提出了光学瞄准及自动跟踪系统的设计方案.系统采用四象限光电探测器为前端探测单元,结合自动控制技术和精密步进系统,实现目标激光光斑的自动瞄准和跟踪.介绍了系统的工作原理,并对其进行了硬件设计和控制程序设计.经调试、运行证明,该系统方案可行、简单且易于实现,二维位移的跟踪控制精度可达10μm以下.     

无人作战飞机操控/自主CCRP攻击系统建模与仿真

基于空地轰炸的模式设计了无人作战飞机操控/自主攻击系统。该系统有智能化的自主决策能力、对复杂环境的适应力、较高的可靠性,能合理地消除攻击过程中的瞄准偏差。借鉴模糊控制原理构建了操控导引系统,将火力控制系统和飞行控制系统结合起来。仿真结果表明,该系统可有效地完成轰炸任务。     

浅析舰载光电跟踪技术

舰载光电跟踪技术是利用光电跟踪设备对跟踪、瞄准、捕获可疑目标,综合了多种先进的光学技术、图形处理技术、信号处理技术,在现代海上测量工作以及海上战争中具有重要的应用价值,为舰载光电对抗系统奠定良好的基础.本文从舰载光电跟踪设备组成及其关键技术方面对舰载光电跟踪技术进行了简单介绍,并探讨了舰载光电跟踪设备抗冲击分析法.     

光电模拟器的设计及在半实物仿真试验中的应用

介绍了光电模拟器的设计与实现以及在半实物仿真试验中的应用.在硬件设计上,设备采用工控机平台,以生成考核被试系统光电设备所需要的模拟视频图像为目的,进行设计和实现.在软件设计上采用Visual C＋＋编程环境实施软件设计与开发,完成模拟航路的生成、模拟视频图像的发送和试验数据的处理评估等功能.     

军用光学性能检测设备设计与分析

光电装备广泛应用于探测瞄准、跟踪制导、光电火控、夜间侦察,是实施精确打击和一体化信息作战的重要手段。光电装备长时间野外使用受振动冲击、环境骤变等因素影响,难免会出现机构卡滞、零部件故障、轴系失调等主要性能指标下降等问题。光学性能检测设备是保证光电装备主要性能指标和作战效能发挥的重要技术手段。简述了外军不同修理层级配备的光学性能检测设备发展现状,提出了适用于光电装备保障的性能检测设备基本设计原则,对宽光谱光学系统结构形式、检测设备环境适应性等关键问题进行了探讨,对军用光学性能检测设备研制与发展有借鉴作用。     

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.     

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.     

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.     

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.     

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     

JOURNAL OF ELECTRONICS(CHINA)

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NEXT GENERATION WIRELESS NETWORKS–ESPECIALLY THE USE OF MILLI-MICROWAVE BANDS

The global bandwidth shortage of wireless communications has motivated the exploration of the naillimeter wave （ram-wave） frequency spectrum for the next generation wireless communications. Recent advances in RF CMOS technology and high speed baseband signal processing technologies have enabled tile extensive research and development of turn-wave wireless communications. The multi gigabit per second data rate of ram-wave system will lead to applications in many important scenarios, such as WPAN, WLAN,back-haul for cellular system. And the frequency bands include 28 GHz, 38 GHz, 45GHz, 60GHz, E-BAND and even beyond 100 GHz. The propagation and the imitation of the RF circuits design in these frequency bands make the directional antennas be inevitable for mm-wave communications.