fft2

Orthogonal Freq, Division signal

SPA投影 用于 光谱分析 选取特征波长(SPA projection used for spectral analysis selected characteristic wavelengths)

可以用来解决磨床的建模问题，对加工工件应该采取何种加工策略给出了合理的解决办法(Grinder can be used to solve the modeling problem, which should be taken to the workpiece processing strategies, a reasonable solution)

this is matlab code to solve tveq_newton problem!!!

to genrate a graph in matlab

计盒分形维数计算的matlab源代码编程实现过程(Function [Fdgen NoisfreFD ]=fractaldim(y,Q,M) __________________________________________________________________________ Usage: Computes fractal dimension by box counting(BC) method. NOTE: Running the code may take a little time, because it calculates dimensions for all embedding dimensions up to M. This code is based on an algorithm that constructs a box for the first observation and for other observations test which it belongs to previous box(s). If the observation belongs to one of the existent boxes then increases number of points in the relevant box,otherwise makes a new box. the algorithm of this code uses only rounding down and it does not need binary coding, sorting and so on. It uses only transformation data to [0,2^32-1] and finding valid boxes based on Leibovich and Toth(1989). Inputs: y is a vector time series. q stands for generalized dimension q=1 entropy dimension,q=2 correlation dimension and so on. q=0 is box counting dimen)

一个非线性滤波器的实现程序，能够实现其基本的功能，对于初学者很有帮助。(A nonlinear filter is implemented procedures to achieve its basic functionality, useful for beginners.)

主要介绍了matlab软件中的画图语句，便于大家参考学习(Matlab software drawing statements for easy reference learning)

it will calculates the SNR if u give noise,clean,noisy speech files as the input it will gives the SNR.

特征提取实例中的确定圆形目标源程序，能有效提取出图像中的圆形目标，并标记(Feature extraction instance to determine circular target source, can effectively extract the image of circular target, and mark)