首页 | 本学科首页   官方微博 | 高级检索  
相似文献
 共查询到20条相似文献,搜索用时 62 毫秒
1.
刘健  刘军 《电子对抗》2006,(3):35-38
综合电子信息系统对于作战行动的影响是关系到未来战争成败的关键。文章从四个方面对综合电子信息系统对作战行动的影响进行了研究,重点阐述了综合电予信息系统对于战斗进程、作战样式、指挥体制、作战结果等方面的影响。  相似文献   

2.
航天测控对抗在未来战争中的应用   总被引:2,自引:2,他引:0  
航天测控系统在未来战争中具有极其重要的作用。针对未来战争需求,提出了航天测控对抗的概念,分析了航天测控对抗的能力,探讨了实现航天测控对抗的手段。  相似文献   

3.
王琳 《电讯技术》2013,53(8):973-976
射频隐身是武器平台对抗无源探测设备的重要技术手段,与雷达、红外隐身一起构成作战平台的隐身能力。飞行器射频隐身性能是其作战能力和生存能力达成的重要因素。在对飞行器典型有源传感器的使用和面临的威胁分析基础上,分析了飞行器射频隐身主要技术手段,概括了飞行器射频隐身主要技术特点,提出了飞行器射频隐身技术的发展思路。  相似文献   

4.
面对当今世界军事变革、部队转型的新形势,我们必须深刻思考军事战略重心转移所引发的需求变化以及新的武器装备采办政策、技术发展路线图等等问题。从电子信息对抗在未来战争中的作用和地位出发,分析其主体作战对象的发展特点,并根据未来电子信息对抗核心作战能力建设的军事需求,探讨能够确保全谱战斗空间信息优势和决策优势的对抗体系及其发展战略。  相似文献   

5.
扩频综合测控系统中的组合测距技术研究   总被引:4,自引:0,他引:4  
扩频综合测控系统是一种新型的飞行器测控系统,它主要用于完成遥控、遥测、通信、定位、监控显示等各项综合性任务。针对中远程飞行器的特点和任务需要,本文提出了一种应用于飞行器扩频综合测控系统的新型组合测距方案,能够在长距离范围内完成无模糊精确测距及遥控、遥测等综合测控任务。  相似文献   

6.
肖小兵 《电讯技术》2013,53(6):688-693
远近效应是码分多址测控系统中影响飞行器多址接收性能的重要因素。分析了远近效应在多站测控系统中对飞行器接收性能的影响,提出了在该系统中进行功率控制的必要性,给出了地面测控站功率调节的方法和策略,可作为多站应用的码分多址测控系统功率调节的参考思路。  相似文献   

7.
从未来战争是核威胁下的信息化战争,和信息战是信息化战争起主导作用的作战样式出发,论述了数字化战场是打赢信息战的要求和物质基础;电子战、信息战是数字化战场的重要组成部分,又是有效对抗数字化战场作战系统的主要手段和方法;提出了先进的电子战技术和强大的电子战能力是与武器装备技术占优势的敌人进行均势或优势对抗的必要条件,并提出了具体的对抗方法。  相似文献   

8.
信息化战争是现代战争的重要特点,是军事领域发展的大趋势,更是现代战争军事理论发展的必然,是战争历史上的深刻变革。现代战争需要各军兵种、各作战部队、各种战斗和战斗支援力量,军地一体协调一致,形成整体。这使得以往战争中主要是注重在同一作战地域内进行协同的情况发生一定的变化,更加注重在同一时间范围内,使不同作战地域上的作战行动在整体作战空间紧密结合,交战各方空间信息系统之间的体系对抗贯穿了作战全过程。为适应这一变化趋势,分析研究空间信息系统的主要功能及系统组成,掌握系统的空间信息对抗能力,提出空间信息对抗的可能方式,才能适应世界新军事变革,满足现代军事斗争的需要。  相似文献   

9.
从上世纪80年代美国实施“星球大战”计划,美国就已经开始弹道导弹防御系统研究,进入21世纪,俄罗斯和中国也开始研究并建立自己的反导系统。主要介绍了反导系统和高超音速临近空间飞行器的现状和特点,在此基础上详细分析了高超音速临近空间飞行器在反导系统综合信息对抗和反辐射方面的优势。提出了基于高超音速临近空间飞行器掩护我方导弹突防和对抗敌方反导系统的思路和方法,以及高超音速临近空间飞行器可以搭载的反导对抗有效载荷。最后总结了高超音速临近空间飞行器在未来反导对抗中的应用前景。  相似文献   

10.
随着无人智能技术的发展,未来战争的智能化对抗成为决胜的关键。空中无人蜂群以其智能化、低成本、规模大、作战效能高等特点,是未来战争的必然发展趋势。从无人蜂群作战概念出发,系统的分析总结了这一技术的发展脉络和空中无人蜂群的作战特点,介绍了国外空中蜂群的发展状况,分析了其关键技术并针对其发展弱项提出了对抗策略,为空中无人蜂群作战的发展和反蜂群策略研究提供参考。  相似文献   

11.
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.  相似文献   

12.
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.  相似文献   

13.
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.  相似文献   

14.
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.  相似文献   

15.
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.  相似文献   

16.
Waveguide multilayer optical card (WMOC) is a novel storage device of three-dimensional optical information. An advanced readout system fitting for the WMOC is introduced in this paper. The hardware mainly consists of the light source for reading, WMOC, motorized stages addressing unit, microscope imaging unit, CCD detecting unit and PC controlling & processing unit. The movement of the precision motorized stage is controlled by the computer through Visual Basic (VB) language in software. A control panel is also designed to get the layer address and the page address through which the position of the motorized stages can be changed. The WMOC readout system is easy to manage and the readout result is directly displayed on computer monitor.  相似文献   

17.
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.  相似文献   

18.
The collinearly phase-matching condition of terahertz-wave generation via difference frequency mixed in GaAs and InP is theoretically studied. In collinear phase-matching, the optimum phase-matching wave hands of these two crystals are calculated. The optimum phase-matching wave bands in GaAs and lnP are 0.95-1.38μm and 0.7-0.96μm respectively. The influence of the wavelength choice of the pump wave on the coherent length in THz-wave tuning is also discussed. The influence of the temperature alteration on the phase-matching and the temperature tuning properties in GaAs crystal are calculated and analyzed. It can serve for the following experiments as a theoretical evidence and a reference as well.  相似文献   

19.
Composition dependence of bulk and surface phonon-polaritons in ternary mixed crystals are studied in the framework of the modified random-element-isodisplacement model and the Bom-Huang approximation. The numerical results for Several Ⅱ - Ⅵ and Ⅲ- Ⅴ compound systems are performed, and the polariton frequencies as functions of the compositions for ternary mixed crystals AlxGa1-xAs, GaPxAS1-x, ZnSxSe1-x, GaAsxSb1-x, GaxIn1-xP, and ZnxCd1-xS as examples are given and discussed. The results show that the dependence of the energies of two branches of bulk phonon-polaritons which have phonon-like characteristics, and surface phonon-polaritons on the compositions of ternary mixed crystals are nonlinear and different from those of the corresponding binary systems.  相似文献   

20.
An insert layer structure organic electroluminescent device(OLED) based on a new luminescent material (Zn(salen)) is fabricated. The configuration of the device is ITO/CuPc/NPD/Zn(salen)/Liq/LiF/A1/CuPc/NPD/Zn(salen)/Liq/LiF/A1. Effective insert electrode layers comprising LiF(1nm)/Al(5 nm) are used as a single semitransparent mirror, and bilayer cathode LiF(1 nm)/A1(100 nm) is used as a reflecting mirror. The two mirrors form a Fabry-Perot microcavity and two emissive units. The maximum brightness and luminous efficiency reach 674 cd/m^2 and 2.652 cd/A, respectively, which are 2.1 and 3.7 times higher than the conventional device, respectively. The superior brightness and luminous efficiency over conventional single-unit devices are attributed to microcavity effect.  相似文献   

设为首页 | 免责声明 | 关于勤云 | 加入收藏

Copyright©北京勤云科技发展有限公司  京ICP备09084417号