nlfm_code

说明：  信号产生的matlab仿真，包括单位冲激，单位阶跃，符号和抽样信号，内容丰富，适合信号分析同学使用(signal by matlab)

STEGO IMAGE MATLAB CODE

额度为单位对身材C阿萨css彻底删除维多西奇舞动长裙策维持稳定从万达cdc档次低vvcd(In cognitive radio networks, power control is considered as an important issue to improve the performance of dynamic spectrum sharing. In this paper, in order to maximize the efficiency of the system, the secondary users and primary user behaviors will be considered. )

This function computes the fourier series of a signal x(t). The amplitudes of the fourier series have the same dimension of the original signal, so this function is useful for immediate computation of the actual frequency components, without further processing.

This function obtains a unitary matrix Q such that: d=diag(Q *diag(lmd)*Q). In other words, it gives a way to generate a matrix with given eigenvalues and diagonal elements. By Daniel Perez Palomar (last revision: May 10, 2004). Feel free to distribute this file as it is (without including any modifications).(This function obtains a unitary matrix Q such that: d=diag(Q*diag(lmd)*Q). In other words, it gives a way to generate a matrix with given eigenvalues and diagonal elements. By Daniel Perez Palomar (last revision: May 10, 2004). Feel free to distribute this file as it is (without including any modifications).)

Stephen J. Chapman 著的《matlab 编程》(第二版)——邢树军、郑碧波译 经典matlab教材！ (Stephen J. Chapman of the " matlab programming" classic textbook matlab)

用于对信号的HHT分析，可得到IMF、功率谱、边际谱等图(HHT for signal analysis, obtained IMF, power spectrum, marginal spectrum, etc. Figure)

说明：  能通过添加不同程度的白噪声使一组数据扩展成多组数据(It can expand a group of data into multiple groups by adding different levels of white noise)

高级变换的fft，dft代码实现，包括结果的绘图(fft and dft realization)

说明：  本程序用pca，kpca,svm,pls,fisher实现cstr和csth过程的故障检诊断，检测率为百分之九十九，故障识别率为百分之九十三(The program use pca, kpca, SVM, PLS, fisher realize CSTR process inspection and CSTH fault diagnosis, detection rate was ninety-nine percent, the fault recognition rate is ninety-three percen)