小波分析及信源熵在股市预测分析中的应用

提出了一种预测股市行情的新指标——信源熵 ,结合小波分析和 MATLAB工具来分析预测股票的未来走势 .并用实例说明了信源熵和小波分析在预测股票的走势上有很大优越性和准确性 .     

DQCA城域网实现计算机局域网互连时的性能研究

本文分析了分布式排队周期性访问ＤＱＣＡ城域网实现计算机局域网互连时的性能。通过比较研究发现，ＤＱＣＡ城域网在实现局域网互连时的性能（包括公平性能和报文停留时间）优于ＤＱＤＢ城域网。研究了网络参数Ｐｍａｘ、报文平均长度和报文统计特性对网络性能的影响。     

On-line/off-line digital signatures

A new type of signature scheme is proposed. It consists of two phases. The first phase is performed off-line, before the message to be signed is even known. The second phase is performed on-line, once the message to be signed is known, and is supposed to be very fast. A method for constructing such on-line/off-line signature schemes is presented. The method uses one-time signature schemes, which are very fast, for the on-line signing. An ordinary signature scheme is used for the off-line stage.In a practical implementation of our scheme, we use a variant of Rabin's signature scheme (based on factoring) and DES. In the on-line phase all we use is a moderate amount of DES computation and a single modular multiplication. We stress that the costly modular exponentiation operation is performed off-line. This implementation is ideally suited for electronic wallets or smart cards.A preliminary version appeared in theProceedings of Crypto 89. Shimon Even was supported by the fund for the Promotion of Research at the Technion.     

汉化的电子信箱系统

本文主要介绍汉化的电子信箱系统的形成，特点及意义，意在国内推广普及电子信箱业务。     

反向区逐步逼近调节平衡法调节QJ一23型箱式单臂电桥

介绍一种能使电桥迅速平衡的方法     

桥梁红外图像的自动识别跟踪方法探讨

文中以实时采集到的桥梁红外图像为基础，探讨了复杂背景中桥梁的识别跟踪方法，文中先对桥梁红外图像进行了预处理，充分利用桥梁红外图像的二值化图和二值化方差图进行桥梁图像的分割，采用逐步渐进的方式进行桥梁的检测识别工作，并采用选下阈值的边缘增强手段突出桥身的外缘线；利用可变点的线段模型去检测不同距离不同大小的桥墩。文中还介绍了采用一形心中跟踪算法识别出桥梁进行适应波门跟踪。     

POCSAG码中信息码字在全国性联网上的妙用

本文对无线寻呼全国性联网进行了探讨，提出了两种联网方法。其中同址群呼信码识别法极适于国内寻呼系统的现状。     

MANET Routing with Provably Low Complexity Through Constant Density Clustering and Route Request Broadcast

As mobile ad hoc networks (MANETs) are emerging as important components in critical and large-scale applications, it is crucial to develop MANET routing mechanisms with provably low complexity. In this paper, we give a tutorial overview of the efficient use of elementary node clustering and route request broadcast mechanisms for low-complexity MANET routing. We explain these mechanisms with illustrative examples and discuss their theoretical performance characteristics. We demonstrate that node clustering with constant density and route request broadcasting with a doubling radius technique over the network of cluster leaders can be employed for MANET routing with theoretically proven low complexity. Moreover, we contrast these efficient elementary clustering and route request broadcast mechanisms with clustering and route information accumulation mechanisms in the widely studied AODV and DSR routing protocols and discuss the implications of these various mechanisms for scalable MANET routing.     

数字电视增值业务——数字电视短消息系统

通过手机短信、Internet网页、双向机顶盒3种方式中的任意组合进行内容接入，在单向广播网络（或双向）中实现与频道内容相关的互动功能，实现广告投放者、数字电视运营者、数字电视观众的多赢。     

短消息系统未来网络建设趋势

论述了短消息在国内外的发展现状及短消息的服务功能,分析了中国移动的“移动梦网”计划,并阐述了短消息系统网络的发展趋势和前景。