duffing-mutual

二维MUR吸收方柱散射，该文件用MUR边界很好的处理了方柱散射问题。(2D rect scattering)

利用matlab图像处理计算一维信号的盒维数(Calculated using matlab image processing one-dimensional signal box dimension)

信号瞬时频率的MATLAB实现计算，用于信号的分析(MATLAB realization of the signal instantaneous frequency calculation for signal analysis)

卷积编码，给定生成矩阵和输入，输出卷积编码结果(Convolutional encoding, the generator matrix and the given input and output of the convolution result of the coding)

一个完整的直扩通信系统matlab实现，已编译通过(DSSS communication system complete matlab implementation, compiled by)

本程序是经典谱估计方法的程序，仿照＜数字信号处理＞胡广书．包含了书中后面三章的所有方法．另外还有ＦＩＲ，ＩＩＲ数字滤波器的去噪方法，ＳＶＤ特征值去噪，信噪比的计算等等．是一经典的程序组．希望和所有人共享(this procedure is classic method of spectral estimation procedures, modeled on the "Digital Signal Processing" Mr Kwong book. The book contains three chapters behind all the way. Another FIR, IIR digital filter de-noising, SVD eigenvalue denoising, the signal-to-noise ratio calculation, and so on. Is a classic procedure group. All sharing hopes and)

特征提取算法（pca),用于数据的特征提取。(feature extraction)

说明：  机床时频域信号特征提取，包括均方根值、峰值、峰值因子、峭度因子、脉冲因子、裕度系数、波形因子、功率谱密度、频率方差、均方频率(Eigenvalue extraction)

说明：  该函数用于多径瑞利信道仿真，其中y为输出信号(Multipath Rayleigh Channel)

永磁同步电机直接转矩控制仿真，按照博士论文中规中矩建立的直接转矩控制模型 (Permanent magnet synchronous motor direct torque control simulation, Ph.D. thesis in accordance with established law-abiding model of direct torque control)