-
aa66
一个很好的学习图像处理的函数的例子程序,对于初级学习者来说,有很好的帮助,对于初学习者非常适合!(a good learning image processing function examples procedures for primary learners, good help, very suitable for early learners!)
- 2007-03-22 23:22:49下载
- 积分:1
-
E_vote_Code
This is demo program about electronic voting. This base on elgamal agorythm. It can work well in Matlab 2012.
- 2014-09-08 09:53:20下载
- 积分:1
-
principal-component-analysis
主成分分析的代码,数据处理的必备,方便实用!!(Principal component analysis of the code, the data processing required, convenient and practical! !)
- 2013-10-05 09:48:16下载
- 积分:1
-
Harris_conner_detection
Harris_conner_detection,用MATLAB实现Harris角点检测算子的源码,用于特征点提取及图像配准等。(Harris_conner_detection, use MATLAB to achieve Harris corner detection operator of the source code for the feature point extraction and image registration and so on.)
- 2009-01-02 16:10:43下载
- 积分:1
-
PCA-MATLAB
一个关于PCA人脸识别的源代码。对PCA的初学者又很大的帮助(PCA Face Recognition on the source code.)
- 2009-04-18 22:06:46下载
- 积分:1
-
digitalImage
说明: 介绍各种数字图像处理教材的基本内容。Teaching Notes 是数年来我学习数字图像处理方法的初步笔记,主要内容来自国内外公开出版的教材与专门性著作。(Introduction of various digital image processing the basic content of teaching materials. Teaching Notes is a few years I have studied the initial digital image processing notes, mainly from the published materials at home and abroad and specialized publications.)
- 2010-04-27 20:00:00下载
- 积分:1
-
巴克码 barker code
巴克码(相位编码脉冲信号)的波形、频谱和模糊函数的计算。((Phase-coded pulse signal) is calculated waveform, spectrum and ambiguity function Barker code.)
- 2020-08-03 15:08:34下载
- 积分:1
-
潮流计算程序1
说明: 潮流计算是电力学名词,指在给定电力系统网络拓扑、元件参数和发电、负荷参量条件下,计算有功功率、无功功率及电压在电力网中的分布。潮流计算是根据给定的电网结构、参数和发电机、负荷等元件的运行条件,确定电力系统各部分稳态运行状态参数的计算。通常给定的运行条件有系统中各电源和负荷点的功率、枢纽点电压、平衡点的电压和相位角。待求的运行状态参量包括电网各母线节点的电压幅值和相角,以及各支路的功率分布、网络的功率损耗等。(Power flow calculation is a term of power science. It refers to the calculation of the distribution of active power, reactive power and voltage in power network under given network topology, component parameters and generation and load parameters. Power flow calculation is based on the given grid structure, parameters and operation conditions of generator, load and other components to determine the steady-state operation parameters of each part of the power system. Usually, the given operating conditions include the power of each power source and load point, junction voltage, balance point voltage and phase angle. The parameters to be determined include the voltage amplitude and phase angle of each bus node, the power distribution of each branch and the power loss of the network.)
- 2020-06-23 10:00:01下载
- 积分:1
-
duojing_zhikuo
用于多径直扩信号的仿真程序,对于研究直扩信号的人很有帮助。(Simulation program for multi-straight SS signals for the DS signal is helpful.)
- 2012-04-10 15:42:18下载
- 积分:1
-
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