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chaostest
本程序是混沌现象测试的源代码,揭示了混沌系统的特性(This procedure is the chaos phenomenon test source code.Characteristics of chaotic system are disclosed
)
- 2013-07-28 19:42:01下载
- 积分：1
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fangzhen
实验一 双极性矩形随机信号的归一化功率谱密度一
1.1 功率谱密度简介
平稳过程的任何一个非零样本函数的持续时间为无限长，显然都不满足绝对可积和总能量有限的条件。因此，它的傅里叶变换不存在即没有频谱函数。所以我们用功率谱密度来表述其频谱特性。
随机过程的任一实现是一个确定的功率型信号。而对于任意的确定功率信号f(t)，它的功率谱密度为：
式中， 是f(t)的截短函数 对应的频谱函数。f(t)是平稳随机过程 的一个实现。而随机过程某一个实现的功率谱密度不能作为过程的功率谱密度。过程的功率谱密度应该看作是任一实现的功率谱密度的统计平均，即
虽然该式给出了平稳随机过程的功率谱密度，但我们通常都不利用这个式子来计算功率谱。我们知道，确知的非周期功率信号的自相关函数与功率谱密度是一对傅里叶变换。对于平稳随机过程，也有类似的关系，即
和
对于平稳随机过程我们通常先求出其自相关函数再利用上式求出其功率谱密度。
1.2 实验要求
1.了解平稳随机信号功率谱的概念及计算方法
2.仿真不同占空比，等概、非等概双极性矩形随机信号的归一化功率谱密度
3.分析不同信号所包含的频谱分量，有无直流分量和定时分量信息
(A pair of rectangular random experiment polarity signal sample return a nonzero function of any duration power spectral density of a 1.1 power spectral density of a stationary process Introduction of infinite length, apparently not satisfied absolutely integrable and the total energy of the limited conditions. Therefore, it is the Fourier transform of the spectrum that does not function does not exist. Therefore, we use the power spectral density to express their spectral characteristics. Any random process is a realization of a certain type signal power. For arbitrarily determined power signal f (t), its power spectral density is: wherein, is f (t) is a function corresponding to the truncated spectrum function. f (t) is a stationary random process of realization. The random process to achieve a certain power spectral density can not serve as the power spectral density of the process. Power spectral density process should be seen as a statistical average power spectral density of any r)
- 2014-11-30 20:39:29下载
- 积分：1
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position-the-fault
电力电缆故障测距，定位电力电缆故障的，方便检修，适用于matlab环境。(to position the fault of a power cable,to serve for the examine and maintain of the power cable.)
- 2015-03-04 13:32:27下载
- 积分：1
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Lecture17
用PCA在一组数维中找到主十得到主元分析，用于MACHINE LEARNING 中初步学习者(use pca find the principle component int the dataset)
- 2010-10-27 10:17:35下载
- 积分：1
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constructKernel
雅克比程序 需要的可以下载试一下 还不错(jocobi)
- 2010-11-16 16:00:23下载
- 积分：1
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Gonzalezproblemanswer
说明： GONZALEZ数字图像处理第二版习题解答（英文版）(GONZALEZ Digital Image Processing Second Edition Problem Solutions (English))
- 2010-04-09 10:32:57下载
- 积分：1
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knn_map
用得最多的是最近邻，此处上传的是K-近邻，即k＝1。matlab环境下的代码。附有实例。(used most often is the nearest neighbor, here is uploaded K-neighbor, k = 1. Matlab environment code. With examples.)
- 2007-04-11 17:05:09下载
- 积分：1
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chambolle
作者为Chambolle的论文An Algorithm for Total Variation Minimization and Applications的源代码及论文(The author is Chambolle papers An Algorithm for Total Variation Minimization and Applications of the source code and papers)
- 2013-12-21 21:10:31下载
- 积分：1
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n
说明： 实现MATLAB中解决基线漂移的算法，使图线更便于观察(MATLAB implementation of the algorithm to solve the baseline drift, so that more easy to observe Chart)
- 2010-11-01 13:06:28下载
- 积分：1
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Matlab-2010a
说明： 张志涌版，根据matlab R2010a版来编排的Matlab教材。值得matlab学习者下载，很与时俱进的东东。(The handbook of matlab R2010a.)
- 2011-04-06 16:12:08下载
- 积分：1
