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jiaohuanji
- 程控交换机有时发生“死机”故障，有时却没有发生，有时发生的次数比较多，有时发生的次数却少，因此，程控交换机的死机故障分为暂时性故障、随机性故障。引起程控交换机“死机”故障的原因主要有以下几个：清零复位信号出现问题、时钟脉冲信号出现问题、噪音干抗引起的问题、时延以及环境条件问题。本文主要对HJD-04 程控交换机的“死机”故障进行分析，探析引起死机的以上几个原因。-PBX occasional " crash" failure, sometimes does not occur,
Research-and-Progress
- 针对随机相位编码光学图像加密技术，简要回顾了它的国内外研究进展，并讨论了它的发展态势。-Research and progress of optical image encryption using random phase mask present research situation and development of image encryption using random phase mask at home and abroad are reviewed. At the sam
RED-and-Droptail
- 通过OPNET仿真实验对随机早期检测算法和弃尾算法的特点及性能进行了分析比较 -: Through OPNET simulation of random early detection algorithm and discard the end of features and performance are analyzed and compared
test2
- Cluster Head Selection in WSN based on Coverage preserving and Energy Eciency Cluster-heads are generally chosen either in a random manner or mainly based on nodes residual energy. Accordingly, there is no guarantee that network coverage is
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- 如果一个股票市场是属于Fama有效市场假设EMH [40] (Efficient Market Hypo thesis) 所说的弱式有效状态,那么任何根据股票价格序列数据去试图预测的努力都是多余的。因 为,今天的价格已经反映了昨天的价格。价格的变化,亦即收益只反映了未曾预期到的信 息,而信息是完全随机的,因此,收益序列也是完全随机的,不可预测。问题在于关于中国 股票市场收益序列的研究分析表明,收益序列绝非是完全互相独立的。它不但存在短期相 关性,而且还存在中长期相关性
A-Bayesian-Approach
- In this paper, we propose a Bayesian methodology for receiver function analysis, a key tool in determining the deep structure of the Earth’s crust.We exploit the assumption of sparsity for receiver functions to develop a Bayesian deconvolution
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- Random processes a reviw
05459892
- The cluster head is selected by the random number generated by nodes in the hierarchical routing protocol which is implementing Low Energy Adaptive Clustering Hierarchy (LEACH). As a result, the cluster head may be chosen randomly and be
BCH-code-_matlab
- 循环码是线性分组码中最重要的一种子类，是目前研究得比较成熟的一类码。它的检、纠错能力较强，编码和译码设备并不复杂，而且性能较好，不仅能纠正随机错误，也能纠正突发错误。循环码还有易于实现的特点，很容易用带反馈的移位寄存器实现其硬件 。循环码具有许多特殊的代数性质，这些性质有助于按照要求的纠错能力系统地构造这类码，并且简化译码算法，目前发现的大部分线性码与循环码有密切关系正是由于循环码具有码的代数结构清晰、性能较好、编译码简单和易于实现的特点，因此在目前的计算机纠错系统中所使用的线性分组码几乎都是循
em_covariances
- Using SAS/IML : This code uses the EM algorithm to estimate the maximum likelihood (ML) covariance matrix and mean vector in the presence of missing data. This implementation of the EM algorithm or any similar ML approach assumes that the data are
hundun
- ：针对正交编码信号已有设计方法计算复杂、编码长度和数量受限等问题，该文利用混沌序列类随机、初值 敏感， 易产生和易使用的特点， 提出应用混沌序列设计随机离散频率编码信号。 在给出编码信号设计方案的基础上， 详细推导此类信号的模糊函数，分析了其距离、多普勒分辨能力，讨论了信号的准正交特性，并比较了不同混沌序 列对信号性能的影响。 理论分析和仿真实验表明， 结合混沌序列的频率编码信号具有优良的模糊函数、 准正交性能， 且信号产生容易，编码长度和数量可以任意设置，可以作为一类有潜力的雷
kuopintongxin
- 扩频通信讲义 主要包扩几张章 第2章 扩频技术及其理论基础 第3章 扩频系统的伪随机序列第4章 扩频信号的相关接收第5章 扩频系统的同步-Spread spectrum communication mainly include several Zhang Zhang chapter second spread spectrum technology and its theory basis third chapters spread spectrum system pseudo random s
Probability--Random-Variables-and-Stochastic-Proc
- mean square estimation, entropy, spectral estimation
PapamarcouNotes-2
- random process notes
solution
- solution of probability, random variables and stochastic processes
posongguocheng
- 我们常常会遇到这样一类随机现象 它们发生的地点 时间以及相联系的某种属性 常归结为某一空间E中的点的随机发生或随机到达情况 -We often encounter such a class of random phenomenon which takes place and time associated with certain attributes are often attributed to a space E points in a random occurrence random
Bayesian-learning-theory
- 贝叶斯学习理论使用概率去表示所有形式的不确定性，学习和推理都通过概率规则来实现。-Bayesian learning theory using the probability that all forms of uncertainty, learning and reasoning by probability rules . Bayesian learning , the results of the probability distribution of random variables ,
Probability-a-stochastic-process
- Probability theory deals with the study of random phenomena, which under repeated experiments yield different outcomes that have certain underlying patterns about them. The notion of an experiment assumes a set of repeatable conditions that allow any
On-the-Role-of-Estimate-and-Forward-With-Time
- In this paper, we focus on the general relay channel. We investigate the application of the estimate-and-forward (EAF) relaying scheme to different scenarios. Specifically, we study assignments of the auxiliary random variable that always satis
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- 用GAL16V8设计可变长度序列信号发生器，在掌握伪随机序列性质的基础上，设计给定长度的伪随机序列信号发生器，也即设计给定n后（n为移位寄存器的级数）最长线性反馈移位寄存器序列。并在给定n产生的最长序列的基础上，截短出课题给出的序列长度，并用FM软件对可编程器件GAL16V8进行编程，以实现长度不同的序列信号发生器。-GAL16V8 design variable-length sequence signal generator based on the master pseudo-random