Description: 对原始信号做DCT的算法：Cox 和Piva 等人提出的DCT技术的经典之作。Cox利用随机数发生器产生标准正态序列作为水印信息对图像进行整体DCT变换后，选取除去DC系数之外部分较低频率系数叠加水印信息 Piva则修改整幅图像的中频部分。对原始信号分块后，再作DCT的算法：Hsu和Wu 把图像进行8*8分块，将一个二进制序列作为水印放入DCT的中频区；有些学者则计算整个图像的DCT，把一个实数序列嵌入DCT的中频系数上。选择中频区的好处是一方面尽量减少嵌入信息对图像主观视觉的影响；同时，尽量避免有损压缩对水印信息可能带来的损失。还有一种DCT方法就是把水印信息嵌入到高频系数上，但是采用这种方法，抗压缩性非常差。-done to the original signal DCT algorithm : Cox Piva and others made the DCT technology classic. Cox using random number generator producing standard normal sequence information as a watermark image of the overall DCT, DC coefficient selection removed outside some lower frequency coefficient superposition watermark information Piva will be replaced by images of the entire IF part. The original signal block, before making the DCT algorithm : Wu Hsu and put images 8* 8 block, a binary sequence as watermarks Add DCT IF; Some scholars calculated whole image of DCT, a real sequence embedded IF DCT coefficients. IF the choice is a good one to minimize the embedded information to the subjective visual images; Meanwhile, try to avoid Compression right watermark information possible losses. There Platform: |
Size: 33792 |
Author:圣子到 |
Hits:
Description: 通过Monte Carlo仿真，说明DS扩频信号在抑制正弦干扰方面的有效性。用一均匀随机数发生器产生某个二进制信息符号的序列，每个信息比特重复Lc次。
包含文件：DS_restrain_interference.M
SS.M-through Monte Carlo simulation, note DS spread spectrum signal sinusoidal interference in inhibiting the effectiveness. Using a uniform random number generator produce a binary sequence information symbols, each bit of information to repeat Lc times. Documents include : DS_restrain_interference.M SS.M Platform: |
Size: 1024 |
Author:杨絮 |
Hits:
Description: 用matalab开发的随机数生成程序包，用于各种随机数的生成，可到以下网址更新和浏览详细的说明：http://www.math.uu.se/research/telecom/software/-matalab development with the random number generator package, for various random number generator. can be updated to the following website and browse detailed explanation : http :// www.math.uu.se/research/telecom/softwa 're / Platform: |
Size: 62464 |
Author:王邦新 |
Hits:
Description: 实现正态分布的伪随机数发生器
实现正态分布的伪随机数发生器-To achieve normal distribution of the pseudo-random number generator to achieve normal distribution of the pseudo-random number generator Platform: |
Size: 1024 |
Author:syq |
Hits:
Description: Parzen窗法，由样本求概密估计，例为一维正态分布和双峰均匀分布，内附随机数生成的原理说明。-Parzen window method, by the sample density estimate for estimated Example for one-dimensional normal distribution and bimodal uniform distribution, random number generator containing a description of the principle. Platform: |
Size: 134144 |
Author:赵瑞峰 |
Hits:
Description: 用matlab仿真对光谱进行定标和很好的一个随机数发生器-Matlab simulation of the spectrum used for calibration and a very good random number generator Platform: |
Size: 121856 |
Author:Ellison |
Hits:
Description: 3种伪随机数列发生器的matlab编码以及其各种特性的分析-Three kinds of pseudo-random number generator matlab bar coding and analysis of its characteristics Platform: |
Size: 147456 |
Author:黎明 |
Hits:
Description: 随机数生成程序，用于作为系统辨识的输入信号，得出相应的输出-Random number generator procedure for system identification as an input signal, the output reached Platform: |
Size: 1024 |
Author:神 |
Hits:
Description: 用MATLAB语音实现产生线性同余伪随机数发生器-Generated using MATLAB voice to achieve a linear congruence pseudo-random number generator Platform: |
Size: 1024 |
Author:wangwenhui |
Hits:
Description: 常用随机数发生器，C实现
/*
* 文件包含了6个函数，它们能产生符合相应分布的规律的随机数：
* GenUniformRnd ： 产生一个随机数，符合均匀分布。（伪随机序列）
* GenBernoulliRnd ： 产生一个随机数，符合伯努利分布。
* GenBinomialRnd ： 产生一个随机数，符合二项分布。
* GenPoissonRnd ： 产生一个随机数，符合泊松分布。
* GenExponentRnd ： 产生一个随机数，符合指数分布。
* GenGaussRnd ： 产生一个随机数，符合高斯分布。
*/-Common random number generator, C implementation /** file contains six functions, they can produce in line with the corresponding distribution laws of random numbers:* GenUniformRnd: generate a random number, in line with evenly distributed. (Pseudo-random sequence)* GenBernoulliRnd: generate a random number, in line with the Bernoulli distribution.* GenBinomialRnd: generate a random number, in line with binomial distribution.* GenPoissonRnd: generate a random number, in line with Poisson distribution.* GenExponentRnd: generate a random number, in line with exponential distribution.* GenGaussRnd: generate a random number, in line with Gaussian distribution.* / Platform: |
Size: 1024 |
Author:lo |
Hits:
Description: 产生符合一定分布的随机数的方法是，先产生(0，1)均匀分布的随机数，然后通过一个适当的变换方法得到所要求分布的随机数。常用的均匀分布伪随机序列发生器有线性同余发生器和线性反馈移位寄存器两种。-That meet certain distribution of the random number is first generated (0,1) uniformly distributed random number, then an appropriate transformation method requested by the distribution of random numbers. Uniform distribution commonly used pseudo-random sequence generator has a linear congruential generator and two linear feedback shift register. Platform: |
Size: 1024 |
Author:wswfx |
Hits:
Description: 各种随机数产生程序，包含了随机数产生的各种方法。-All kinds of random number generator program includes various methods of random number generator. Platform: |
Size: 8192 |
Author:周祥娟 |
Hits:
Description: 差值、函数逼近、矩阵特征值计算、数值微分、数值积分、方程求根、非线性方程组求解、线性方程组直接法、线性方程组迭代法、随机数生成、特殊函数计算、常微分方程初值问题、偏微分方程数值解法、数据统计和分析-Difference, function approximation, eigenvalue calculation, numerical differentiation, numerical integration, finding roots of equations, nonlinear equations, linear equations, direct method, iterative linear equations, random number generator, a special function to calculate , initial value problems of ordinary differential equations, numerical solution of partial differential equations, statistics and analysis Platform: |
Size: 138240 |
Author:jame |
Hits:
Description: 在matlab下运行，产生标准均匀分布，正态分布和指数分布的随机数发生器程序。-In matlab running, generate standard uniform, normal and exponential distribution random number generator program. Platform: |
Size: 9216 |
Author:lichuanjiang |
Hits:
Description: 用MATLAB编的随机数生成程序代码，希望对大家有所帮助。-Compiled using MATLAB random number generator program code, we want to help. Platform: |
Size: 6144 |
Author:张天一 |
Hits:
Description: 随机数发生器，用于产生随机数。改善了MATLAB中自带的随机数发生器产生随机数不理想的状况。-Random number generator, used to generate random number.Improved MATLAB in the random number generator comes with random number is not the ideal situation. Platform: |
Size: 524288 |
Author:柯妙 |
Hits:
Search - random number generator matlab