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Hilbert
matlab中的Hilbert变换，主要处理csv文件。(matlab in the Hilbert transform, which mainly deals with csv file.)
- 2020-08-23 20:18:16下载
- 积分：1
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PTS_OFDM
OFDM系统中用PTS算法降低系统的峰值平均功率比(OFDM system PTS algorithm used to reduce the peak-to-average power ratio)
- 2007-06-03 15:55:12下载
- 积分：1
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guangdu
HARDLIM - 阈值传递函数
表示close的最上面的矩阵；
用变量s来表示open的最上面的矩阵(HARDLIM- threshold transfer function that close the top of the matrix express variable s to open the top of the matrix)
- 2007-07-11 17:57:43下载
- 积分：1
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FSWT
频率切片小波变换程序（FTWT），matlab的m文件。从一种新的角度出发，通过自由选择频率切片函数、引进新尺度参数，在频率域实现小波变换，该变换能够很好地刻画信号各成分之间的相对能量关系。此外，频率切片小波变换的时频窗中心频率就是观测频率，而无需进行尺度换算。(Frequency slice wavelet transform procedures (FTWT), matlab m file. Starting from a new angle, through freely chosen frequency slice function, the introduction of a new scale parameter, the wavelet transform in the frequency domain, the transformation can portray the relative energy relations between the components of the signal. In addition, the frequency slice wavelet transform frequency is the observation of the time-frequency window center frequency without scale translation.)
- 2021-03-25 14:59:14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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filter3
digital fir filter with matlab2
- 2010-10-06 03:52:56下载
- 积分：1
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matlab
MATLAB函数大全，可以很快的找到所需函数及其功能(MATLAB function Guinness, you can quickly find the required function and its function)
- 2011-01-10 19:44:13下载
- 积分：1
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Matlab-based-design
基于Matlab的汽轮机流体动压滑动轴承的优化设计，和改造。(Matlab-based steam turbine fluid hydrodynamic sliding bearing optimize the design, and transformation.)
- 2012-10-24 22:32:48下载
- 积分：1
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facerecog
This code is for face recognition using PCA
- 2011-12-24 22:35:10下载
- 积分：1
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oustaloup
分数阶微积分的matlab实现的一种实现方法（英文），采用Oustaloup滤波器逼近来估算分数阶微积分。(Matlab implementation of the fractional calculus, an implementation method (English), the use of Oustaloup filter approximation to estimate the fractional calculus.
)
- 2016-04-23 21:09:11下载
- 积分：1
