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suijixinhaochuli
- 随机变量的产生,其中指数分布的和高斯分布的随机变量采用了变换法,分析它的自相关函数和功率谱密度,-The selection of random variables, in which exponential distribution and Gaussian distribution of random variables using the transformation method, analysis of its autocorrelation function and power sp
suij
- 用Matlab产生一满足条件的窄带随机过程,编写子程序计算该随机过程的均值函数,自相关函数,功率谱,包络,包络平方及相位的一维概率密度画出相应的图形-Generated using Matlab to meet the conditions of a narrow-band random process, the preparation of random process subroutine to calculate the mean function, auto-correlation fu
matlabjingdianxinhaochuli
- 将源码中的地址目录改成所要分析的数据(数据可以使txt格式的),在MATLAB中运行就可以分析出数据的时域和频域图像,自相关互相关函数,以及功率谱图像-The source address in the directory into which to analyze the data (data can txt format), run in MATLAB can analyze the data in time domain and frequency domain image, from t
auto-powerspectrum
- 自相关函数Rxx(tao)可以了解不同时刻同一随机样本间的波形相似程度。 自功率谱密度函数Sxx(f):反映相关函数在时域内表达随机信号自身与其他信号在不同时刻的内在联系。当随机信号均值为零时,自相关函数和自功率谱密度函数互为傅立叶变换对。 -Autocorrelation function Rxx (tao) can learn the same random sample at different times the degree of similarity between th
Clark_model
- Clark无线通信信道模型仿真的Matlab源程序,采用SOS仿真方法。程序内容包括:时变信道的幅度的实部和虚部,幅度概率密度函数,自相关函数,功率谱密度。-Simulation of Clark wireless communication channel model of the Matlab source code, using SOS simulation method. The program includes: the real and imaginary parts of time
Jakes_model
- Jake s无线通信信道模型仿真的Matlab源程序,采用SOS仿真方法。程序内容包括:时变信道的幅度的实部和虚部,幅度概率密度函数,自相关函数,功率谱密度。-Simulation of Jake s wireless communication channel model Matlab source code, using SOS simulation method. The program includes: the real and imaginary parts of time-var
Hoeber_model
- Hoeber无线通信信道模型仿真的Matlab源程序,采用SOS仿真方法。程序内容包括:时变信道的幅度的实部和虚部,幅度概率密度函数,自相关函数,功率谱密度。-Simulation of Hoeber wireless communication channel model of the Matlab source code, using SOS simulation method. The program includes: the real and imaginary parts of ti
bzs
- 白噪声过程的功率谱 自相关函数和功率谱-The power spectrum of the white noise process autocorrelation function and power spectral
kaerman
- 用MATLAB实现的卡尔曼滤波,根据有用信号和干扰噪声的统计特性(自相关函数或功率谱),以线性最小均方误差(MSE),能最大程度的滤除干扰噪声,提取有用信号。-Kalman filter using MATLAB, based on the statistical properties of the useful signal and interference noise (autocorrelation function or power spectrum), linear minimum m
Spectrum
- 计算序列的自相关函数,绘制信号xn的自功率谱幅频曲线,绘制信号yn的自功率谱幅频曲线,计算互谱函数-Calculating the autocorrelation function of the sequence, drawn from the power spectrum of the signal xn amplitude-frequency curve, drawn from the power spectrum of the amplitude-frequency curve signa
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
xcorr_fft
- 用于求取一段时间信号序列的求取自相关函数、功率谱密度-Obtaining autocorrelation function for obtaining a period of a signal sequence, power spectral density
noise-signal
- 求任意带宽的低通、高通、带通高斯白噪声的自相关函数,自协方差函数和功率谱密度函数。-Seeking any bandwidth low pass, high pass, band pass Gaussian white noise autocorrelation function, autocovariance function and power spectral density function.
signalgenerator
- matlab用设计一个信号发生器,并同时画出信号的时域表示,自相关函数及功率谱。白噪声,单位冲激信号,正弦信号,方波信号,三角波信号-matlab design with a signal generator, and at the same time draw time-domain signal representation, the autocorrelation function and power spectrum. White noise, unit impulse signal,
随机信号谱分析
- 随机信号谱分析,给出了随机信号的自相关函数,互相关函数,频响函数,相干函数(Random signal spectrum analysis)
循环谱
- 齿轮数据的分析 EMD滤波 循环自相关 循环谱密度函数 切片图(Analysis of gear data EMD filtering Cyclic autocorrelation Cyclic spectral density function Slicing)
gaosi
- 采用直接法或间接法(通过自相关函数)编制matlab程序,计算信号cos(2πf1t)+cos(2πf2t)叠加高斯白噪声后的功率谱密度。(Matlab program is compiled by direct method or indirect method (through autocorrelation function) to calculate the power spectral density of signal cos (2 PI f1t) +cos (2 PI f2t) s
White_PinkNoise
- 构造均匀白噪声、服从高斯分布的白噪声及粉红噪声,并得到它们的自相关函数、功率谱密度等(Constructing uniform white noise, white noise obeying Gauss distribution and pink noise, and obtaining their autocorrelation function, power spectral density, etc.)
噪声分析
- 正态分布、均匀分布随机噪声分析,通过画出正态分布、均匀分布随机噪声的频谱、功率谱、一维概率密度、自相关函数对噪声进行分析。(Random Noise Analysis of Normal Distribution)
OFDMSignalDetection-master
- 程序实现的主要功能: OFDM调制识别:研究了基于高阶累量和基于小波变换的OFDM信号和单载波调制信号的识别算法,仿真分析了两种算法在高斯信道和多径瑞利衰落信道下的信号识别性能。 OFDM参数估计:研究了基于Welch算法和AR模型法求解功率谱进而估计信号带宽的算法,对两种算法的估计性能进行了比较;根据OFDM信号的循环平稳性研究了基于循环谱的载频估计算法;根据 OFDM信号的自相关性研究了基于可变延时自相关和固定延时自相关的FFT相结合的算法,估计了OFDM信号的有效数据长度、符号