Frequency-detection

国外高校老师编写的语音信号特征提取程序，非常实用初学者研究( [E, V, A, P] = analysis(x, N, U, M) extracts vocoder parameters E, V, A, and P from the speech signal x on a frame by frame basis. N is the analysis frame length, U is the update length, and M is the order of the linear prediction analysis. The return arguments are the extracted parameters, where E, V, and P are vectors with "n_frames" (the number of analysis frames, see code below) elements, A is a (n_frames, M+1) size matrix (includes the leading 1 of the polynomial).)

Tools to matlab optimization

使用Matlab语言生成Xfoil的计算文件，并调用Xfoil快速计算翼型的气动力(Using Matlab language generation Xfoil calculation file and call Xfoil quick calculation of aerodynamic airfoil)

FHSS_DSSS_CDMA的m文件，可以在matlab的simulink上仿真~(FHSS_DSSS_CDMA the m file )

矩阵右互质分解程序 在鲁棒稳定性中有重要的应用(This function returns the result of double coprime decomposition.)

如果阵元间距小于半波长，则阵元间会产生耦合。如果阵元间距大于半波长，则阵列上会现多余的旁瓣，从而降低天线阵列的性能。而当阵列间距选取为半波长时，所估测出的效果最优。(If the array element spacing is less than half wavelength, it will produce coupling between array elements. If the array element spacing is greater than half wavelength, the array will now be extra sidelobes, thus reducing the performance of the antenna array. When the array spacing is half wavelength selection, the best estimate the effect.)

说明：  狼群算法基础原始程序，内含对应的2014年狼群算法原始论文(The basic original program of Wolf pack algorithm, including the corresponding original paper of 2014 Wolf pack algorithm)

matlab练习题,战胜matlab必做的50题，教你如何轻松的掌握matlab(matlab exercise)

这是一个超短波地面反射双线信道模型的matlab程序。(This is a reflection FM ground dual channel model Matlab procedures.)

频率域扫描建模，可以匹配传递函数，很实用的仿真。(Scanning frequency domain model, can match the transfer function, it is useful simulation.)