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schedule2009_1
an ICM algorithm that is very useful and gives spectacular resuls
- 2010-05-13 17:50:17下载
- 积分:1
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Untitled2
job shop scheduling problem
- 2013-09-14 11:40:23下载
- 积分:1
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SharpMATLAB
Matlab skin Detection
- 2015-03-28 11:40:33下载
- 积分:1
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SimpleColorDetection
对图像rgb分割,输入图像,可得到R.G.B分别图像。最终得出分割图像(Rgb image segmentation, the input image, each RGB image available. The final segmented image obtained)
- 2010-07-30 10:45:28下载
- 积分:1
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amica
amica-modified ica algorithm
- 2009-12-24 04:12:32下载
- 积分:1
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MAjuguji
MA(q)模型的矩估计方法MATLAB例程(MA (q) model of the moment estimation method of MATLAB routines)
- 2009-07-15 16:48:20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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monituihuo
说明: 这个是matlab应用广泛的一个智能化程序,模拟退火算法在数学建模和工业控制中经常用到。(This is an intelligent matlab widely used procedure, simulated annealing algorithm in mathematical modeling and is often used in industrial control.)
- 2010-04-22 10:36:20下载
- 积分:1
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vts
IT IS ABOUT THE TRACKING OF VEHICLE TRACKING SYSTEM.
- 2015-02-21 14:06:01下载
- 积分:1
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spectralmatrix_msc_sgolay
今日对光谱数据预处理中的MSC(多元散射校正)和SG(0阶、高阶)平滑进行了学习,参考书目是李志刚老师著的《光谱数据处理与定量分析技术》(原理介绍较为详细)并结合CSDN和联合开发网上下载的代码进行了简单的matlab编程。代码稍后上传,介绍详细,感兴趣的可以去看看。(Today, MSC (Multiple Scattering Correction) and SG (0th order, high order) smoothing in spectral data preprocessing are studied. The bibliography is "Spectrum Data Processing and Quantitative Analysis Technology" by Li Zhigang (more on the principle) . And combined with CSDN and joint development of the code downloaded online to carry out a simple matlab programming. The code is uploaded , and the details are detailed. If you are interested, you can check it out.)
- 2018-09-01 10:25:36下载
- 积分:1