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对一幅图像的频谱进行频率位移，移到窗口中央，并显示出频率变换后的频谱图(The frequency spectrum of the image frequency shift, to move the central window, and shows the spectrum after the frequency conversion)

一个完整的OFDM信号模拟程序，在4QAM调制下估计了OFDM的性能。(A complete OFDM signal simulation program, estimated at 4QAM modulation OFDM performance.)

人工免疫算法，采用信息熵计算抗体多样性，亲和力成熟通过克隆选择、细胞超变异来实现(Artificial immune algorithm, using information entropy calculated antibody diversity, affinity maturation through clonal selection, cell variant to achieve ultra-)

This MATLAB FILE contains the complete CODING of plotting a 2 graph on a single graph.

standard MATLAB program of PSO(standard program of PSO)

用Baum-Welch算法来迭代估计一个隐马尔科夫模型（HMM）的初始状态概率分布以及其状态转移概率矩阵。其中文件有mainfile_B_W.m为主函数，Baum_Welch.m为Baum-Welch算法迭代函数，Forward_variable.m与Backward_variable.m与Gamma_variable.m与Ksi_variable.m是需要计算的四种因子，B_pdf.m为混淆散射概率密度函数。(It s Baum-Welch algorithm for iteratively estimating the initial states probability distribution and state transition probability matrix. In the folder, "mainfile_B_W.m" is the main function, and "Baum_Welch.m" is the iteration Baum-Welch function. Also these four file "Forward_variable.m " "Backward_variable.m" "Gamma_variable.m" "Ksi_variable.m" are used for calculating crucial factors. "B_pdf.m" is the emission probability distrubution function.)

非负矩阵分解的最新算法的matlab实现，以及多种算法之间的对比，和在图像识别中的应用,实测可用(The latest non-negative matrix factorization algorithm matlab implementation, as well as the contrast between a variety of algorithms and image recognition applications, the measured available)

描述心电信号的的幅频特性以及心电信号的功率谱特性。(Description of the ecg signal amplitude frequency characteristics and ecg signal power spectrum characteristics. )

GABOR 滤波器的实现方法的MATLAB源程序实现。实现方法比较简单，适合初学者学习。(Implementation of GABOR filter MATLAB source implementation. Implementation is relatively simple, suitable for beginners to learn.)

imfreqfilt函数 对灰度图像进行频域滤波 参数I 输入的空域图像 参数ff 应用的与原图像等大的频域滤镜( imfreqfilt function for gray image frequency domain filtering Parameters I entered the airspace image)