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tensor_toolbox_2.4
一个基于张量的工具包,工具包中包含了HOSVD。(a tensor toolbox)
- 2010-09-28 20:51:55下载
- 积分:1
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parks_McAlgo
parks maclean algorithm for low pass filtering
- 2009-11-10 04:15:07下载
- 积分:1
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gtt
PCMA律13折线编码器matlab源程序(Law 13 PCMA codec matlab source code line)
- 2010-11-23 10:20:09下载
- 积分:1
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bode
伯德图的绘制程序,一种特殊的matlab作图方式,多多交流吧(Bode diagram drawing program, a special matlab plotting way more exchanges)
- 2012-09-03 09:37:34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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LinearDiscriminantAnalysis
提出了一种新的基于图像分块重构和线性判别分析相融合的方法,主要用于人脸识别。该方法通过计算两幅图像之间图
像块的重构均值误差,运用线性判别分析求出两幅图像降维后的欧式距离,融合重构误差和欧式距离计算这两幅图像之间的差别
程度。(A new block-based image reconstruction and the integration of linear discriminant analysis method is mainly used for face recognition. This method between the two images by calculating the reconstructed image block average error, calculated using the linear discriminant analysis after dimension reduction of two images Euclidean distance, the integration calculation of reconstruction error and the Euclidean distance difference between these two images level.)
- 2010-11-15 15:25:17下载
- 积分:1
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88-11-11
clear stratus clouds from an image
- 2010-02-14 05:53:17下载
- 积分:1
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Fuzzy_Tunning.zip
模糊自适应PID控制源代码,比较不错,有图有真相(Fuzzy adaptive PID control source code, quite good, there are pictures and the truth)
- 2012-11-27 22:52:21下载
- 积分:1
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homework_1_1
最大似然估计法的matlab实现,及Crammer-lor下界的确定(Maximum likelihood estimation of the matlab implementation, and Crammer-lor to determine the lower bound)
- 2010-11-27 14:45:12下载
- 积分:1
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mathematical-modeling-problem
2014“深圳杯”数学建模夏令营B题
基因组组装
将读长序列组装成基因组,能较好地解决测序中可能出现的个别碱基对识别错误、基因组中存在重复片段等复杂情况.(2014 Shenzhen Cup Mathematical Modeling Camp B title
Genome assembly
Assembled into the read length genomic sequence, preferably the nucleotide sequence of the particular solution of recognition errors may occur, the presence of complications, etc. repeats genome.)
- 2014-09-19 19:59:59下载
- 积分:1