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Matlab时频分析技术及其应用源代码，包括第三章到十五章的内容(Matlab time-frequency analysis and its application source code, including the Chapter to the contents of Chapter 15)

说明：  雷利对流，用格子波尔兹曼方法以Z.Guo程序为基准，得出的近似值用于估计浮动过程，希望有人能够用得到。( Rayleigh Benard Convection, using a LB method,based on [Z.Guo, ]. Boussinesq approximation is used for the buoyancy term.)

This file include many matlab excercise, you can download and using file .m to examine your matlab s skill. Thanks for see!

真实模拟人走路，通过调节参数可改变人行走的速度，图形化界面操作，含源代码。(To simulate the human walk.)

用于abaqus各向同性线弹性梁 单轴拉伸 子程序umat(FOR ISOTROPIC ELASTICITY)

因子分析是指研究从变量群中提取共性因子的统计技术。最早由英国心理学家C.E.斯皮尔曼提出。因子分析可在许多变量中找出隐藏的具有代表性的因子。将相同本质的变量归入一个因子，可减少变量的数目，还可检验变量间关系的假设。(Factor analysis is the study of common factors extracted from the variable group statistical techniques. First proposed by British psychologist CE Spearman. Factor analysis can identify a representative factor to hide many variables. Will be essentially the same variables into one factor, can reduce the number of variables, but also test the hypothesis that the relationship between variables.)

说明：  卫星导航与定位中的easy程序：将原始观测数据O-files转换到GPS时间（week+sow）；利用原始观测数据N-files中的时间和星历表计算位置的地心地固坐标；从O-files和N-files获得数据，仅使用伪距，对大于20组的数据进行重复计算，并利用迭代最小二乘法，计算接收机地心地固位置等功能。(Easy program in satellite navigation and positioning: convert the original observation data o-files to GPS time (week + sow); use the time in the original observation data n-files and ephemeris to calculate the geocentric and geocentric coordinates of the location; get the data from o-files and n-files, only use pseudo distance, repeat the calculation of more than 20 groups of data, and use iterative least square method to calculate the receiver geocentric and geocentric Fixed position and other functions.)

it s about locating TDOA algorithm

BPSK仿真，Es/N0=0:10,得出BER与Es/N0的关系曲线，AWGN信道(BPSK simulation, Es/N0 = 0:10, come to the relationship between BER and Es/N0 curve, AWGN channel)

滤波求和方式实现宽带波束形成，基于分段非线性权重值的Pso算法，这个有中文注释，看得明白，通过matlab代码，非归零型差分相位调制信号建模与仿真分析 ，matlab程序运行时导入数据文件作为输入参数，使用拉亚普诺夫指数的公式，抑制载波型差分相位调制。( Filtering summation way broadband beamforming, Based on piecewise nonlinear weight value Pso algorithm, The Chinese have a comment, understand it, By matlab code, NRZ type differential phase modulation signal modeling and simulation analysis, Import data files as input parameters matlab program is running, Raya Punuo Fu index using the formula, Suppressed carrier type differential phase modulation.)