-
jihanshu
matlab编写正交基神经网络预测,可使用。(write matlab orthogonal basis neural network, may be used.)
- 2010-05-17 17:11:33下载
- 积分:1
-
PCMsimulation
In Matlab
模拟与分析PCM不同量化级别的量化噪声
可以直接运行(In Matlab, simulation and analysis of different quantization levels of PCM quantization noise ,can be run directly)
- 2010-05-25 18:53:00下载
- 积分:1
-
QAM
简单数字调制编程,方便初学者学习简单数字调制编程,方便初学者学习(Simple digital modulation program, easy for beginners to learn simple programming of digital modulation, easy for beginners to learn)
- 2010-12-30 12:44:33下载
- 积分:1
-
simulink_NRZ
通讯中的基带传输仿真,能完全运行哦,如果含有参数,就编个脚步文件,不归零码的在电缆中的传输(Communication baseband transmission simulation run completely Oh, a parameter compilation footsteps file, NRZ code transmission in the cable)
- 2013-01-07 10:43:34下载
- 积分:1
-
gpc
说明: 多模型广义预测控制在循环流化床锅炉床温中的应用(MGPC CFB bed temperature)
- 2020-11-19 21:49:39下载
- 积分:1
-
LQR_control
LQR控制源程序~模糊控制及其Ma tla b应用(LQR control source ~ Ma tla b Fuzzy Control and Its Application)
- 2013-09-07 09:57:04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
-
garchcore
PURPOSE: Helper function part of UCSD_GARCH toolbox. Used if you do not use the MEX file.
- 2012-04-11 21:11:33下载
- 积分:1
-
pmsmdtc
永磁同步电动机直接转矩控制matlab仿真(pmsm DTC control simulation)
- 2012-07-02 21:38:07下载
- 积分:1
-
linemotor
无静差转速负反馈调速系统的仿真模型。系统的给定信号设置为210rad/s,Pl调节器的KP=1.2, =40 其它的参统的参数和前面静差系统的参数一样。(No static error speed negative feedback speed control system simulation model. System of a given signal is set to 210rad/s, PL regulator KP = 1.2 = 40 the other parameters of system parameters and the front static difference parameters of the system.)
- 2020-10-12 22:27:32下载
- 积分:1