s_xy120005

改进的虚拟激励法，用于大型结构的随机频域计算，在建筑、航天、机械领域已得到广泛的应用。(Improved pseudo-excitation method for the large-scale structure of random frequency-domain calculation, in the construction, aerospace, mechanical field has been widely used.)

almoutii-algorithm for space time code

个给定一段信号，采用不同的方法实现QPSK和OQPSK调试信号仿真(A given period of the signal, using different methods to achieve QPSK and OQPSK signal simulation debugging)

有关DFA和MF-DFA的一些代码，只要你能仔细阅读的话相信总有一个适合您(Some code about DFA and MF-DFA, as long as you can read carefully, then I believe there is always a right for you)

MAtlab based simulation program for designing UMTS encoder

采用自相关函数法求基音周期，将采样得到的声音信号按每20ms一帧分为若干帧，并对每帧的序列求自相关函数，取自相关函数第一个最大值点算出基音周期，并以帧为横坐标，基音周期为纵坐标画图，并去除野点，最后取图中浊音部分即面积较大部分的值作为基音周期。(Using the autocorrelation function method pitch period, the sound signal is sampled every 20ms frame is divided into a plurality of frames, and each frame sequence uates the autocorrelation function, taken the first maximum point of correlation function calculated the pitch period, and frame as the horizontal, the vertical axis pitch drawing and remove outliers, and finally take the value of the area that is part of a larger portion of the figure as voiced pitch.)

S函数异步电机模型，从而可以用MATLAB来编程，以及其他相关作用(S function of induction motor model, which can be used MATLAB to programming, as well as other relevant role)

说明：  通过通信系统频率合成原理，生成伪随机的m序列(Principles of communication systems through the frequency synthesizer to generate pseudo-random m-sequence)

改程序是经典的模态识别程序，基本包括了所有的模态识别方法，包括prony法、era发、频域分析法，还具有有限元分析等功能，对模态分析特别有帮助。(Reform program is the classic modal identification procedures, including all of the basic modal identification methods, including prony law, era hair, frequency domain analysis, also has features such as finite element analysis, modal analysis of particularly helpful.)

基于主成分分析（ICA）的图像压缩与重建(Based on principal component analysis (ICA) image compression and reconstruction)