Abstract:The performance for Narrowband Interference(NBI) resistance of Transmitted Reference UWB(TR-UWB) system with a Finite Impulse Response(FIR) notch filter is investigated in this paper.Based on the Ultra Wideband(UWB) channel model proposed by IEEE 802.15.3

Abstract:The notes in Wireless Sensor Networks(WSNs) are high limited due to its small physical size.Therefore choosing the most storage-and energy-efficient block cipher for WSNs is important.In this papert,he block ciphers suitable for WSNs are identified based

Abstract:The millimeter-wave Low Noise Amplifier(LNA) plays critical roles in the millimeter-wave receiving system.The LNA is designed and manufactured based on the transition of waveguide to micro-strip probe in Ka-band and MMIC chip micro-package techniques.The

Abstract:To deploy the self-configuring network of different elements,an equipment based on ARM920T kernel MCU and homemade wireless network chip is designed.Many kinds of sensor nodes and single-soldier nodes can deploy Ad hoc by this equipment.Its network module

Abstract:Particle Filter(PF) is a resampling technique that estimates the unknown population distribution by sampling from the empirical distribution.Due to its adaptation to nonlinear and non-Gaussian space,this optimal estimation method is one of the most discus

Abstract:Automatic Fingerprint Identification System(AFIS) has been widely used because of its convenient,fast,accurate characteristics in the areas of identification.Aiming at how to improve fingerprint recognition rate,a new way of gaining reference point in the

Abstract:An efficient and high speed pipeline Very Large Scale Integration(VLSI) architecture for 1? level 2?D Discrete Wavelet Transform(DWT) is proposed,of which buffer between column and row transform is not needed.Its row transform module is a reconfigurable h

Abstract:介绍了一种简单而有效的区分语音/音乐的方法.该方法仅提取唯一的区别性特征,即改进型低能量帧率(MLER),应用贝叶斯最大后验分类器判断每1段的音频类别,再根据音频流的相邻段有很强的相关性这一特点,采用一种新颖的基于相关性的后验决策方法对分类器的分类结果进行进一步改善.实验结果表明,该方法算法简单,分类效果好.

Abstract:To guarantee the scalability,the Wireless Mesh Networks(WMNs) should be divided into clusters,while the multi-gateway deployment is the crux of the problem.By analyzing the Quality of Service(QoS) and the existing algorithms,a multi-gateway deployment alg

Abstract:A platform of numerical simulation of Magnetic Flux Compression Generator(MFCG) based on Qt/X11 is developed.Graphical User interface(GUI) modeling for MFCG is realized under multi-parameter and complex conditions.By using the GUI post-process tool,the ch

Abstract:针对工业控制中常见的两级主从控制系统,利用以太网建立了环形控制网,并提出了采用"集总帧"方式通信的通信协议。网络节点对协议的处理为延迟转发的模式,用现场可编程门阵列硬件实现。实验结果表明:采用本文提出的控制网络和通信协议,能够大大提高主从控制系统的通信效率。

Abstract:信息系统的访问控制关系到整个系统的信息安全。Lotus Domino/Notes群件系统提供先进可靠的安全机制,特别在访问控制方面,与传统的基于关系型数据库的系统相比具有许多独特的控制方法。简单描述了Lotus Domino/Notes的访问控制抽象模型以及影响访问控制的策略因素,再从较高到较低的级别,逐步地分析了从应用系统级、数据库级、大纲级、文档级、域级等不同层次的访问控制方式。Lotus Domino/Notes提供的这些对信息资源的访问控制方法,能够为企业的信息系统提供比较全面而安全的访问控制解决

Abstract:The filament supply device must bear 30 kV high voltage feedback pulse surged when the strong current switch is turned on,and it is burned easily.In this paper,a new design is introduced to deal with this problem.By using the high-voltage isolation transf

Abstract:On the basis of Least-Mean-Square(LMS) filtering and Recursive-Least-Square(RLS) filtering,the recently developed adaptive filtering algorithms such as the neural network approach,the QR decomposition approach,the unified model algorithm,the high-order cu

Abstract:束流参数测量能够给束流调试提供可靠依据,好的束流品质能够提高闪光照相的空间分辨力。在高能强流电子束束流参数测量及诊断系统工作环境中,针对存在的强大电磁干扰,通过采用光纤传输控制信号的措施,能很好地传输窄脉冲,信号延时抖动小,达到了高速信号的可靠传输要求,利用紧凑嵌入式方法,提高了抗电磁干扰的能力,实现直线感应加速器电磁干扰下的束参数测量。

Abstract:A mixed analysis for linear dynamic networks is proposed in this paper.The proposed method takes the currents and voltages of the linear time-invariant capacitors and inductors,the currents,voltages and charges of the linear time-varying capacitors,and th

Abstract:The traction force of locomotives depends on the adhesion of wheel-rail.Improving the locomotive adhesion capability plays a vital role on the rail transport system.The improvement of adhesion capability concentrates on improving the utilization of adhesi

Abstract:阐述了数字电视与模拟电视的区别,提出使用单高频头实现液晶数字模拟一体机的设想及设计.介绍了整个系统的总体设计思想,给出系统的总体设计、各模块之间的接口定义及工作原理和工作流程.通过整合数字电视芯片和模拟电视芯片实现了预定的设计功能.