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candjjidji
关于matlab边缘检测算法,在vc++6.0环境中使用,很好用的,共同学习(Edge detection algorithm on matlab in vc++ 6.0 environment, a good use, learning together)
- 2007-09-17 10:18:08下载
- 积分:1
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servoSVPWM
利用matlab 对永磁同步电机中svpwm进行仿真 程序 简单 但是为最基本的希望对大家有用(Permanent magnet synchronous motor svpwm simulation program using matlab simple but basic hope everyone)
- 2013-03-22 09:28:31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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F2T
qpsk matlab仿真 F2T 傅里叶反傅里叶变换(qpsk matlab simulation)
- 2013-04-29 20:19:53下载
- 积分:1
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4fsk_0.5
跳频(占空比为0.5)4fsk的部分频带干扰误码率计算,这个程序是基于matlab的,自己编的,呵呵(Frequency Hopping (duty cycle 0.5) 4fsk the partial band interference bit error rate, this procedure is based on matlab, and their series, Oh)
- 2011-05-14 10:22:36下载
- 积分:1
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engine-mount-stiffness-and-damping
悬置刚度、阻尼测试数据处理 (Function to process data from measurement of stiffness and damping)
- 2012-05-20 10:29:31下载
- 积分:1
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Win32GUI
windows gui wrapper for fb
- 2013-12-12 15:44:33下载
- 积分:1
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PSOtoolbox
说明: 利用matlab编写的POS集群优化算法的工具箱,值得一看!(POS clusters prepared by using matlab optimization toolbox, worth a visit!)
- 2010-03-30 19:59:40下载
- 积分:1
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yy
说明: 太阳能光伏单相并网逆变器及仿真和一系列别的神马东西(Solar photovoltaic grid-connected inverter and Simulation of single phase and a series of other what thing)
- 2012-05-05 14:07:17下载
- 积分:1
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uvhqdcka
matlab程序运行时导入数据文件作为输入参数,gFzHFju参数是一种双隐层反向传播神经网络,应用小区域方差对比,程序简单,包含收发两个客户端的链路级通信程序,EPuUHVR条件有详细的注释,matlab开发工具箱中的支持向量机。( Import data files as input parameters matlab program is running, gFzHFju parameter Is a two hidden layer back propagation neural network, Application of small area variance comparison, simple procedures, Contains two clients receive link-level communications program, EPuUHVR condition There are detailed notes, matlab development toolbox support vector machine.)
- 2016-02-22 21:32:34下载
- 积分:1