FDTD_1D

一种MPEG 压缩域上的快速场景分割算法的介绍及相关知识的详细解释(MPEG compressed domain of a quick scene segmentation algorithm on a presentation and a detailed explanation of knowledge)

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.)

MATLAB Example Code : For MATLAB developers, this example code will explain the usage of Ordinary Differential Equations ODE23 and ODE45 in the Matlab environment

说明：  OFDM注水算法matlab仿真代码 可以实现系统仿真 子函数(OFDM water filling matlab)

根据邻接矩阵作图 matlab实现 源代码(mapping according to the adjacency matrix )

mimo 2*2 ,采用BPSK调制，内含ZF，MMSE检测算法。(mimo 2* 2,using BPSK modulation, containing ZF, MMSE 1detection algorithm.)

matlab编程Newmark-β单自由度体系动力响应(Matlab programming Newmark- beta single degree of freedom system dynamic response)

说明：  MATLAB实现元胞自动机实现交通流，仿真(Realization of Traffic Flow by Cellular Automata)

This a two dimensional level set code that extends quanities off the interface using a first order Godunov scheme.

对于形心分析和算例,方便大家学习和使用.(For example centroid analysis and to facilitate them to learn and use.)