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本程序利用均匀三角多项式曲线画出了漂亮的花瓣图形，图形栩栩如生，淡然调参数混的出不同的图形(This procedure using uniform trigonometric polynomial curve draw a beautiful flower graphics, lifelike graphics, indifferent tone parameters of a different mix of graphics)

仿照着《小波去噪中软硬阈值的一种改良折衷法》一文写的程序，对比了软、硬以及软硬阈值折衷法的信噪比及均方根误差。仿真出来之后，原信号的信噪比是负的，不知道为什么？均方根误差的值也比较大，不知何解？信噪比和均方根误差是参照《基于matlab的小波去噪仿真》：吴伟，《信息与电子工程》 一文写的(Modeled on the written procedures of the hard and soft threshold wavelet de-noising an improved compromise " , compared to the soft and hard compromise between the hard and soft threshold signal-to-noise ratio and root mean square error. Out of the simulation, the signal-to-noise ratio of the original signal is negative, do not know why? The value of the root mean square error is relatively large, do not know why? Signal-to-noise ratio and root mean square error with reference to the wavelet denoising matlab-based simulation: Wu Wei, " Information and Electronic Engineering" written)

用matlab编写自适应阈值算法，并调用该自适应阈值函数。(Prepared using matlab adaptive threshold algorithm, and call the adaptive threshold function.)

小波包分析提取振动信号中的特征频率，包括 MUSIC算法，ESPRIT算法 ROOT-MUSIC算法，进行逐步线性回归。( Wavelet packet analysis to extract vibration signal characteristic frequency, Including the MUSIC algorithm, ESPRIT algorithm ROOT-MUSIC algorithm, Stepwise linear regression.)

基于C MEX S-函数永磁同步电机控制系统仿真建模研究(C MEX S-function based on permanent magnet synchronous motor control system simulation modeling)

Matlab code for image processing. using a guassian filter on the image nad using fspecial function

techniques for solving a single nonlinear equation

说明：  it is matlab source code implemeted in Matlab 7.6. this is utilized in matlab.

CombineCoeff function

Wavelet analysis method for knock detection in injection engine