用PComm开发PC机与单片机的通信程序

介绍了分布式控制系统中上位PC机与下位单片机异步串行通信的通信协议 ;同时介绍了在VC 6.0环境下用PComm编写的PC机通信程序来实现上位机和下位机异步串行通信的方法 ,给出了PComm编程实例和下位机程序模块流程图     

自动交换光网络的分布式连接管理技术

自动交换光网络已经成为下一代光网络的发展方向,而其控制平面的分布式连接管理功能则是实现光网络智能性的关键。介绍了自动交换光网络的功能结构,在此基础上系统论述了分布式连接管理的功能要求,详细分析了分布式的呼叫和连接处理的实现过程,并给出了具体的参考流程和状态转移模型。     

基于N-P准则的权值在线学习的分布式检测算法

研究了一种基于N-P准则的权值在线学习的分布武检测系统的融合算法。该算法能够根据观测数据的变化，自动在线调整权值大小，逐步改善系统的检测性能。计算机仿真结果表明，该方法能够较快地收敛到最优解。     

Scalable FFT Processors and Pipelined Butterfly Units

This paper considers partial-column radix-2 FFT processors and realizations of butterfly operations. The area and power-efficiency of butterfly units to be used in the proposed processor organization based on bit-parallel multipliers, distributed arithmetic, and CORDIC are analyzed and compared. All the selected butterfly units are synthesized onto the same 0.11 μ ASIC technology allowing the results to be compared. The proposed processor organization permits the area of the FFT implementation to be traded against the computation time, thus the final structure can be easily tailored according to the requirements of the given application. The power consumption comparison shows that butterflies based on bit-parallel multipliers are power-efficient but have limitations on clock frequency. Butterflies based on distributed arithmetic could be used when higher clock frequencies are used. If extremely long FFTs are needed, the CORDIC based butterflies are applicable. Jarmo Takala received his M.Sc. (hons) degree in Electronics and Dr.Tech. degree in Information Technology from Tampere University of Technology, Tampere, Finland (TUT) in 1987 and 1999, respectively. From 1992 to 1996, he was a Research Scientist at VTT-Automation, Tampere, Finland. Between 1995 and 1996, he was a Senior Research Engineer at Nokia Research Center, Tampere, Finland. From 1996 to 1999, he was a Researcher at TUT. Currently, he is Professor in Computer Engineering at TUT and head of the Insitute of Digital and Computer Systems of TUT. His research interests include circuit techniques, parallel architectures, and design methodologies for digital signal processing systems. Konsta Punkka received his M.Sc. degree (hons) in Electrical Engineering from Tampere University of Technology (TUT), in 2002. He is currently working towards his Dr.Tech. degree as a research scientist in the Institute of Digital and Computer Systems at TUT. His research interests include optimization and implementation of DSP architectures.     

Reexamining psychokinesis: Comment on B?sch, Steinkamp, and Boller (2006).

H. B?sch, F. Steinkamp, and E. Boller's (see record 2006-08436-001) review of the evidence for psychokinesis confirms many of the authors' earlier findings. The authors agree with B?sch et al. that existing studies provide statistical evidence for psychokinesis, that the evidence is generally of high methodological quality, and that effect sizes are distributed heterogeneously. B?sch et al. postulated the heterogeneity is attributable to selective reporting and thus that psychokinesis is "not proven." However, B?sch et al. assumed that effect size is entirely independent of sample size. For these experiments, this assumption is incorrect; it also guarantees heterogeneity. The authors maintain that selective reporting is an implausible explanation for the observed data and hence that these studies provide evidence for a genuine psychokinetic effect. (PsycINFO Database Record (c) 2010 APA, all rights reserved)     

一类密集型分布式FBG传感方法

为了在密集型传感场合下,能提高分布式温度传感系统中传感器的数量,设计了全同 FBG传感器,文中通过实验对全同FBG传感方法作了分析和讨论。     

综合化航电核心处理系统容错技术研究

当前航空电子系统是一个高度综合化、模块化的系统,作为其基础平台的核心处理计算机系统是一个综合数据处理、信号处理和图像处理的实时分布武计算机系统,可靠性要求很高,必须采用客错技术.文章在介绍实时分布武计算机系统硬件和软件结构的基础上,重点对容错技术进行了研究,提出了分层的容错管理策略,并通过具体实例说明了故障监控、故障处理和系统重构的方法.     

分布式网络性能智能监测系统的设计与实现

设计并实现了一种分布式网络性能智能监测系统。系统由很多分布式的客户端组成，可以监测跨交换机域网络。系统同时将神经网络算法引入到流量分析，形成了智能流量分析功能。最后提出了一种基于Hash表的可视化的入侵检测机制，可以简单直观实时地反应网络入侵。     

黑河流域水循环系统的分布式模拟(Ⅱ)——模型应用

应用作者开发的分布式水文模型WEP－HeiHe，对黑河上、中游流域水收支和水循环要素的时空变化进行了系统剖析；同时，还将模型应用于莺落峡径流预报、山前小河流径流和地下水侧渗量的模拟与预报以及未来下垫面变化条件下的流域水收支预测。结果表明，模型能系统表征流域水循环和水收支各要素的时空分异；对于枯水期的径流预报，达到较高的精度。在对下垫面变化条件下流域水收支预测中表明，尽管涵养林建设增加了截留蒸发，但同时也降低了林地的土壤蒸发，因此总蒸发量增加不明显；涵养林建设会使出山径流略有减少，但同时会稍增加土壤和地下水的蓄变量；退耕还牧对减少蒸发、增加正义峡下泄水量以及降低蓄变量赤字均有明显效果。     

网络延迟聚类的宏观预警的检测点放置

大规模异常事件爆发,使网络可用性受到严重威胁。引发人们对大规模入侵检测系统的研究,其检测效果直接取决于网络检测点选取。大规模网络预警检测点放置问题被转化为网络拓扑有权图聚类问题。针对层次聚类算法面临的初始点选择问题提出基于出度分离初始点选择算法,降低聚类结果对初值的依赖。同时,提出改进双向层次聚类算法DHC,有效降低了结果簇数量。实验证明,此算法整体最优并成功应用于测得的真实全国骨干网络,有效解决了检测点放置问题。