登录
首页 » MathCAD » upload-m

upload-m

于 2015-02-27 发布 文件大小:9KB
0 290
下载积分: 1 下载次数: 1

代码说明:

  substitution cipher is the method of encoding in which unit of plain text are replaced by cipher text. Monoalphabetic cipher uses a fixed message over entire message.A monoalphabetic cipher uses fixed substitution over the entire message.The monoalphabetic substitution takes a letter of an alphabet and substitutes it with another letter, this way a ciphertext is generated. The way of converting is fixed. A character of the plaintext will be replaced by the same ciphertext character, during the entire ciphertext. There is no additional key. The only way of security is to keep the substitution-table secret. A popular example for the monoalphabetic substitution is the caesar cipher.

下载说明:请别用迅雷下载,失败请重下,重下不扣分!

发表评论

0 个回复

  • BOC_ACF
    基于matlab的BOC信号的自相关函数,阶数n可以自定义,正余弦相位也可以自定义;CBOC的自相关函数程序(MATLAB based on, BOC_ACF, n_order,CBOC_ACF)
    2012-05-04 11:43:01下载
    积分:1
  • LPKXYZ
    untuk mencari rata-rata
    2011-09-29 07:16:54下载
    积分:1
  • graphicsapplications
    matlab图形应用篇,三角函数曲线,图形的叠加双y轴图形的绘制,单个轴窗口显示多个图形等32个程序(matlab graphics applications articles, trigonometric curves, the superposition of two-y-axis graph drawing, a single axis of the window display multiple graphics programs such as 32)
    2010-11-14 11:40:55下载
    积分:1
  • jiao
    该程序是关于参数化功率谱估计,这些源程序是经过验证的,很好使用(The program is about the parametric power spectrum estimation, the source is a proven, well used)
    2014-01-02 19:34:54下载
    积分:1
  • Random_Signal_Analysis
    随机信号分析 杨福生 清华大学出版社出版(Random Signal Analysis Yang Fusheng Tsinghua University Publishing House)
    2011-07-05 05:00:20下载
    积分:1
  • mobiel-power-cntrol
    Simulink- model for cellular phone transmission power control
    2011-10-25 22:51:54下载
    积分:1
  • toolbox
    matlab时频工具箱,比较齐全,里面包含了时频分析的主要算法(time-frequency toolbox matlab, more complete, which includes the time-frequency analysis of the main algorithm)
    2012-01-31 01:01:32下载
    积分:1
  • EMD-Toolbox
    EMD的Toolbox及使用方法 经验模态分解(Empirical Mode Decomposition, 简称EMD)是由美国NASA的黄锷博士提出的一种信号分析方法.它依据数据自身的时间尺度特征来进行信号分解, 无须预先设定任何基函数。这一点与建立在先验性的谐波基函数和小波基函数上的傅里叶分解与小波分解方法具有本质性的差别。正是由于这样的特点, EMD 方法在理论上可以应用于任何类型的信号的分解, 因而在处理非平稳及非线性数据上, 具有非常明显的优势。所以, EMD方法一经提出就在不同的工程领域得到了迅速有效的应用, 例如用在海洋、大气、天体观测资料与地震记录分析、机械故障诊断、密频动力系统的阻尼识别以及大型土木工程结构的模态参数识别方面。本工具书主要分以下几个部分:导论、非稳态信号介绍、一维时频信号分解、二维时频信号分解、时频影像信息提取等。 (Time frequency toolbox for use with MATLAB The Time-Frequency Toolbox has been mainly developed under the auspices of the French CNRS (Centre National de la Recherche Scientifique). It results from a research effort conducted within its Groupements de Recherche ”Traitement du Signal et Images” (O. Macchi) and ”Information, Signal et Images” (J.-M. Chassery). Parts of the Toolbox have also been developed at Rice University, when one of the authors (PG) was visiting the Department of Electrical and Computer Engineering, supported by NSF. Supporting institutions are gratefully acknowledged, as well as M. Guglielmi, M. Najim, R. Settineri, R.G. Baraniuk, M. Chausse, D. Roche, E. Chassande-Mottin, O. Michel and P. Abry for their help at different phases of the development.)
    2010-11-08 16:19:14下载
    积分:1
  • matlab_vc
    说明:  这里还有一个matlab和VC混合编程的,希望对学习matlab的人有帮助(Here is a matlab and VC programming mix, and want to help people to learn matlab)
    2010-03-26 20:01:39下载
    积分:1
  • s_048_12a
    参考Matlab提供的模块建立简化的三相锁相环的仿真模型,只保留必要的步骤,如abc-dqz只计算Vq,去除频率反馈模块和自动参数调整模块等。 建立单相锁相环的计算模型  简化单相锁相环的系统结构,保留必要的PI控制器等模块  验证并讨论输入信号频率在45-65Hz变化时设计的锁相环的动静态性能  仿真并分析三相输入信号包含谐波、不平衡和直流偏移时锁相环的锁相结果(Reference Matlab provides three-phase PLL module to establish a simplified simulation model, retaining only the necessary steps, such as abc-dqz counting only Vq, remove frequency feedback module and automatic parameter adjustment module.  simulation and analysis of the three-phase input signal contains harmonics, unbalance and DC offset PLL phase-locked Results)
    2020-10-19 09:47:25下载
    积分:1
  • 696516资源总数
  • 106914会员总数
  • 0今日下载