Fig5x43

使用小波包变换分析两个信号的特征向量和各频率成分的功率谱(the analysis of two signals eigenvector and power spectrum using wavelet-packet transform)

可以看到 变步长未必会需要更长的时间 因为它是一种自适应的方式 如果某阶段情况理想的话 就会用最大步长来做 那就会很快 (can see variable step may not need a longer period of time because it is an adaptive way if a certain phase of the the ideal would be the greatest step will be to do it quickly)

小波多层分解单层重构程序，对非平稳时间序列进行多尺度分解，然后进行单层重构。(Wavelet decomposition multilayer single reconstruction program, for non-stationary time series multiscale decomposition, and then single-remodeling.)

三次样条插值函数边界条件由实际问题对三次样条插值在端点的状态要求给出。以第 1 边界条件为例， 用节点处二阶导数表示三次样条插值函数，用追赶法求解相关方程组。通过 Matlab 编制三次样条函数的通用程序， 可直接显示各区间段三次样条函数体表达式，计算出已给点插值并显示各区间分段曲线图。(Cubic spline interpolation function boundary condition for the practical problems cubic spline interpolation required to give the state the endpoint. In the first boundary condition, for example, with a node represents the second derivative of the cubic spline interpolation function for solving the relevant equations with catching method. General Procedure prepared by the cubic spline function Matlab, can directly display each range segment cubic spline function body expression, to the point of interpolation is calculated and displayed for each interval segment curve.)

加窗程序，包含了各种分析窗，经过调试已经通过！(Windowed program, including a variety of analysis window, after debugging has passed!)

通信系统调制的眼图，这个程序像数字滤波器一样展示了眼图，在查看噪声信号时有用(eyemapeyemap(SigVector,WindowLength,Xresolution,Yresolution) )

说明：  带约束算子的粒子群算法，用于matlab环境，对于搞研究的教师有很大帮助(Operator Constrained Particle Swarm Optimization for the matlab environment, engage in research for teachers are very helpful.)

说明：  贪市蛇的MATLAB远程序，很棒(greedy city snake MATLAB far procedures and outstanding)

matlab/simulink通信建模与仿真实例精讲 非常详细(matlab/simulink communications modeling and simulation is very detailed Jingjiang)

教你使用matlab fdatool 各种数字滤波器 包含16qam调制解调程序 以及butterworth 还有 且比学府等等(Teach you to use a variety of digital filters matlab fdatool contain 16qam modulation and demodulation process and butterworth there and so forth than institutions)