Abstract:In recent ten years,High Power Microwave(HPM) technology development encounters a number of impediment.This has led to a reassessment of the way the HPM community has been developing its technologies.They intend to search for new opportunities in all aspe

Abstract:Linear Frequency Modulated Continuous Wave(LFMCW)-Synthetic Aperture Radar(SAR) has become a focus in recent researches,due to its compactness and low cost.This paper analyses and compares various imaging algorithms,based on the special application backgr

Abstract:The parallel topological analysis for circuits is presented in this paper.The method combines node tearing with topological analysis to realize parallel symbolic analysis for larger scale circuits.The method not only successfully enhances the applicabilit

Abstract:为了验证分析金属壳体上的缝隙对屏蔽效能的影响,在理论分析箱体谐振频率和屏蔽效能的基础上,利用全球领先的系统级电磁兼容性仿真分析软件对带缝隙金属箱体的电磁泄露进行了仿真计算,定量分析缝隙对箱体的屏蔽性能的影响,进而提出了缝隙尺寸的限制要求及处理方式。分析结果表明缝隙越短,屏蔽效能越好,也就是说同样的缝隙,用越多的装配螺钉来分断它,屏蔽效能越高。

Abstract:Aiming at the problem of authentication and security in the monitor system,a project of the digital monitor based on watermark is presented.A digital watermarking algorithm in the system is introduced,and the hardware platform based on ARM is implemented.

Abstract:A broad-band signal generator is designed with a high-performance DDS chip AD9858.A clock circuit of 1 GHz is implemented by using the clock chip LMX2531.And the higher harmonic component is effectively restrained by utilizing filters.In order to enhance

Abstract:The LogicLock method based on Altera FPGA can highly improve design efficiency of complex system.The performance of each module can be preserved during system integration.The Assignment Editor in Quartus II supports various constraints including timing cl

Abstract:An anti-interference measure based on spreading is investigated to combat the detrimental effects of interference on the Multi-Band Orthogonal Frequency-Division Multiplexing Ultra-Wideband(MB-OFDM-UWB) system.The proposed system based on Interference Sup

Abstract:The dynamic ocean surface containing swell is constructed on the basis of random ocean wave theory,and the Mapping Project Algorithm(MPA) is introduced to simulate polarimetric Synthetic Aperture Radar(SAR) images of ocean wave.On the basis of aforementio

Abstract:Aiming at the indeterminacy,randomcity and fuzziness of radar system efficiency,by applying extension engineering method,a model based on matter-element theory is proposed to evaluate the efficiency of radar system.By analyzing four types of series radar,

Abstract:This paper presents two simple and symmetrical macromodelings for coupled interconnects which are derived by applying the multi-ports theory.These new models can avoid the problems(such as low accuracy,numerical stability and possibility) which result fro

Abstract:Rectenna is the key to wireless power transmission,and a novel folded dipole rectenna is designed in this paper.The input resistance of receiving aerial can be adjusted extensively.It has a parallel structure which gets over the disadvantage of needing bo

Abstract:The generation of self-generated plasma is analyzed.The reflection,absorption and transmission characteristics of High Power Microwave(HPM) in self-generated plasma are studied by numerical simulation.Emission parameters of HPM are efficiently selected by

Abstract:Wavelet denoising is an important application of wavelet analysis in engineering.The keys of wavelet denoising,namely how to select threshold and how to utilize the threshold to dispose wavelet coefficients,are introduced.Via the noised simulated signal e

Abstract:利用GSM模块对汽车进行全方位防盗。系统的整体设置通过电话拨打汽车防盗系统号码,接通系统后,进行语音播报操作提示。系统能识别双音多频信号,从而实现系统设置。系统具有震动传感、车边门传感、自动巡航控制传感与电平过低传感等触发源,当触发源被触发后,系统可循环拨打用户预设的报警电话,无论用户身在何处,均可实现全球汽车报警。该系统体积小,具有独特的双电源控制,稳定性高,方便可靠。

Abstract:在基于Lotus Domino的应用系统中,系统功能往往由多个Notes数据库组成,每个Notes数据库都有其自身的存取控制策略。在对系统进行维护时,比较传统和简单的方法是由系统管理员通过Designer或Administrator直接进行操作。然而这种方法的缺点是,必须安装专用工具,不支持基于浏览器的远程维护,且维护工作量也比较大。在基于B/S的应用中,把用户注册和权限管理等系统维护功能在Web页面上实现,能够增加系统的灵活性和可维护性,并且能够降低维护工作量。

Abstract:For using the solid switch device instead of hydrogen thyratron,research has been done in high-power high voltage semiconductor switch and high speed high voltage combination circuits.Based on switch principle of power MOSFETs,the over driving technology

Abstract:This paper introduces the method,step and notice of using vector network analyzer to measure broadband swept frequency Radar Cross Section(RCS) in RF simulation anechoic chamber,and elaborates the principle test technology to improve the measurement accur

Abstract:The paper analyzes the updated situation and development of monitor system on Wireless Local Area Network(WLAN).Then,based on digital video frequency,image compression,wireless communication and long-distance control technologies,a project of WLAN is desi