backwardflow

对信号进行谱分析，并根据谱分析结果绘制谱分析结果图。(The signal spectrum analysis, and mapping of the spectral analysis of the results of spectral analysis graph.)

一个目标跟踪的实例，用的是交互式多模型仿真方法。(Examples of tracking a target, using a method of interactive multi-model simulation.)

floyd算法 主要用于图论中的球最短距离的程序 可以直接求出任意两点间的最短距离(floyd algorithm used in graph theory the ball the shortest distance programs can be obtained the shortest distance between any two points)

partial autocorrelation plot to decide the order of arima model

Three dimensional hydrogen atom spherical harmonics visualization.

用MATLAB绘制系统零极点，有关Z变换的相关知识(MATLAB zero pole system, the Z-transform knowledge)

通过MATLAB平台对通信仿真，研究讨论Turbo码的编译码结构，四种Turbo码译码算法，讨论Turbo码中几种常见的交织器，利用MATLAB软件平台进行并行级联Turbo卷积码的性能仿真，仿真评估了不同设计参数对Turbo码性能的影响。(Through MATLAB simulation platform for communications, research and discussion Turbo code decoding structure, four kinds of Turbo code decoding algorithm, discuss several common Turbo code interleaver, using MATLAB software platform for parallel concatenated convolutional codes Turbo Performance Simulation , simulation and evaluation of different design parameters on Turbo code performance.)

this is the code about how to choose the best gen of the GA. it is use the roulette wheel algorithm, where the best gen will be selected randomly using this.

说明：  有限元六面体单元MATLAB代码，有限元，FEM，六面体单元，等参元(Finite element hexahedral element MATLAB code)

基于matlab的一些常用算法，包括一些数值算法，特殊函数的计算等(Based on matlab some commonly used algorithms, including some of the numerical algorithm, the calculation of the special function)