newhht

MATLAB simulation of group velocity dispersion in an optical fiber

说明：  在matlab上面对4fsk调制解调进行仿真，中间使用升余弦滤波器作为发送和接收滤波器(In the face of 4fsk modem matlab simulation, the middle raised cosine filter used to send and receive filters as)

采用fastica算法的盲源分离，对于线性混合的信号，分离效果很好(By fastica blind source separation algorithm)

1．通过实验加深对快速傅立叶变换（FFT）基本原理的理解。 2．了解FFT点数与频谱分辨率的关系，以及两种加长序列FFT与原序列FFT的关系。 离散傅里叶变换（DFT）和卷积是信号处理中两个最基本也是最常用的运算，它们涉及到信号与系统的分析与综合这一广泛的信号处理领域。实际上卷积与DFT之间有着互通的联系：卷积可化为DFT来实现，其它的许多算法，如相关、滤波和谱估计等都可化为DFT来实现，DFT也可化为卷积来实现。(1. Deepen the experimental fast Fourier transform (FFT) the basic tenets of understanding. 2. Understand the FFT spectrum and points of the resolution, and two extended sequence with the original FFT FFT relations. Discrete Fourier Transform (DFT) and the convolution of two signal processing is the most commonly used basic arithmetic, they relate to the signal and system analysis and synthesis of the wide range of signal processing field. DFT actually convolution and interoperability between contact : DFT into convolution can be achieved in many other algorithms, If relevant, filtering and spectral estimation could be achieved as DFT, DFT into convolution can be achieved.)

利用MATLAB作为编译工具，将高维空间数据投影到低维空间。。(Using MATLAB as the compilation tools, data projection of high-dimensional space to low-dimensional space. .)

以网页的形式详细的介绍了MATLAB的基础知识和使用技巧(The form of a web page in detail the basic knowledge of MATLAB and use of skills)

大津法MATLAB实现,实现对图像的去噪功能！(OTSU matlab program)

完成十余卷积过程，简单方便，能够这样那样这样，sorry(Convolution process more than a decade to complete, simple and convenient, this can be done this way, sorry)

说明：  四个不同参数的ARMA过程的零极点图和功率谱密度曲线(Four different parameters of ARMA process of pole-zero diagram and power spectrum density curve)

time series In this example we will use a synthetic data set. To create our synthetic data we will make our unit of time 1000 years = 1 ky and sample a 500,000 year record in 2 ky increments. We first create a vector containing the times: