snake_demo

自己编的几个一维搜索MATLAB代码，有牛顿法、平分法、成功失败法、黄金分割法、进退发、不精确一维搜索法。(for their own series of several one-dimensional Search MATLAB code )

在matlab环境下结构模态参数识别，振型、频率都有很高的精度(Structural modal parameter identification in the Matlab environment, have a high frequency modes accuracy)

4Cyclist problem simulation model Four cyclists are at the desert. Each of them starts from a different location and tries to reach the other ones. Cyclist 1 goes straight to cyclist 2, cyclist 2 straight towards cyclist 3 etc. such that finally the cyclist 4 goes straight towards cyclist 1. Form the equations, build a Simulink-model and find out the meeting point of the cyclists by simulating the system with the following initial values:

matlab波速成形，讲解波束成形的过程，以及形成的方法(and matlab is wave velocity molding, explain the beamforming process and the method of forming)

遗传算法解决tsp问题的MATLAB程序，详细源码。(Genetic algorithms to solve tsp problems MATLAB program, a detailed source.)

This is the CRB caculated for an OFDM system to compair belind channel estimation. CRB is Cramer Rao bound and it is the lowest bound for analyzing the devlopement of algorithms of channel estimation.

huffman coding for jepeg compression

PSO优化算法用于函数优化，具体的函数包括Quadric，Rastrigin等等(PSO optimization algorithm for function optimization, specific functions including Quadric Rastrigin and so on )

本书基于MATLAB 5.2版，提供了使用MATLAB的实践性指导。MATLAB已成为适合多学科、多种工作平台的功能强大、界面友好、语言自然并且开放性强的大型优秀应用软件，同时也已成为国内外高等院校高等数学、数值分析、数字信号处理、自动控制理论以及工程应用等课程的基本教学工具。本书按逻辑编排，自始至终用实例描述；内容完整且每章相对独立；是一本简明的MATLAB参考书，既适用于初学者，也适用于高级MATLAB用户。对MATLAB与FORTRAN、C等语言结合的描述更是所有MATLAB书籍中少有的一大特色。 本书适合作为理工科高等院校研究生、本科生教学用书，也可作为广大科研工程技术人员的自学用书。

小波降噪、时频分析等方法，系统地研究航天电子设备多余物噪声检测过程中各操作变量和微粒物理参数对声波频谱的影响。通过单因素试验，详细分析了微粒粒径、振动力学条件中加速度和频率等3因素对声音信号频谱分布的影响规律，比较了短时傅里叶变换和小波变换的特点。该结果为进一步识别多余物微粒的参数提供了指导依据(the complexity of the material interaction and the properties of the particles themselves make the received signal difficult to analyse. This paper based on particle collision sound wave mechanism, using the methods of wavelet de-noising, time-frequency analysis and so on, this paper systematically studies the influence of various operating variables and particle physics parameters on the sound spectrum in the process of detecting the noise of aerospace electronic equipment. Through the single factor test, the influences of the three factors such as acceleration and frequency on the spectral distribution of the sound signal are analyse in detail, and the characteristics of the short-time Fourier transform and the wavelet transform are compared. The result provides a guideline for further identification of the parameters of the extraneous particles.)