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MECATRONICA---CINVESTAV
Linear and nonlinear system in simulink
- 2013-08-25 14:40:51下载
- 积分:1
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压缩感知一维成像
压缩感知一维成像,重构点目标,拥有OMP,BCS子程序(Compressed sensing one-dimensional imaging, reconstruction of point targets, with OMP, BCS subroutine)
- 2018-07-11 16:58:36下载
- 积分:1
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40527594ldpc_MATLAB
说明: LDPC 编码解码 编码器 高效传输 误比特率性能(ldpc decoder coder ber)
- 2020-02-12 09:43:32下载
- 积分:1
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Gaussian_Ingrated
高斯光束光强积分值计算,积分的路径、上下限等(Gaussian beam intensity integral value)
- 2010-06-22 15:56:49下载
- 积分:1
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Rayleigh_Channe_OFDM
特别 经典 一些Rayleigh信道相关的OFDM的matlab代码(Some special classical Rayleigh channel related OFDM the matlab code. Rar)
- 2009-02-27 09:25:20下载
- 积分:1
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simpowersystem-
matlab simulink教程。适用与matlab的电力系统建模仿真。包括电机,电源,电力电子,和新型电力器件的仿真建模。(matlab simulink)
- 2011-11-08 21:57:01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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kalman-filter
卡尔曼滤波matlab程序,静态及动态实验,北航仪器专业大作业(kalman filter)
- 2015-01-16 15:30:36下载
- 积分:1
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nmpc
matlab非线性预测控制nmpc,源代码程序,很经典(matlab nonlinear model predictive control nmpc, source code, very classic)
- 2014-02-18 20:53:22下载
- 积分:1
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rungekutta
Runge kutta to solve a simple equation
- 2013-03-03 19:33:57下载
- 积分:1