qiyizhi-SVD

This model defines the spectrum sensing in cognitive radio applications

comparing objective functions

张小飞版阵列信号处理的例程，很适合研究生和相关专业人员作为参考(Routine Xiaofei version array signal processing, it is suitable for graduate students and related professionals as a reference)

matlab用于参数估计的代码 可以处理数据分析 方便拟合(matlab code for parameter estimation can handle data analysis)

说明：  该算法是贪婪算法mp的matlab程序，用于信道估计等等(The algorithm is greedy mp' s matlab program for channel estimation, etc.)

说明：  自动生成三维的多孔介质，对多孔介质研究的学者有用(Automatic generation of three-dimensional porous media, porous media studies scholars Useful)

此方法用模糊聚类的方法对全体样本进行分类，称为模糊c均值(Fuzzy c-means)

说明：  这些资料对于初学MATLAB的人来说是不错的资料，希望对大家有用(The information for the beginner who MATLAB is good information, useful for all of us hope)

Time Invariant Time Varying Systems and circular convolution

在PID控制中，微分信号的引入可改善系统的动态特性，但也易引起高频干扰。在误差扰动突变时尤其显出微分项的不足。若在控制算法中加入低通滤波器，则可使系统性能得到改善。(In PID control, the introduction of differential signal can improve the dynamic characteristics of the system, but it can also cause high-frequency interference. When error perturbations change abrupt, the deficiency of differential terms especially shows. If the low-pass filter is added to the control algorithm, the performance of the system can be improved.)