function

将声音文件在时间轴上分割成几段，分别将段的秩序及某些段内的秩序颠倒，从而实现了对声音文件的加密。首先，先读取一个声音信号，对信号做1024点FFT变换，取完点之后，分成四个向量，四个向量组成一个矩阵，再对每一个向量进行转置，再重新整合，从而就实现了回密的过程。(Sound files on the timeline will be divided into paragraphs, each paragraph of the order and reversed the order of some paragraphs to realize the encryption of sound files. First, the first reading of a voice signal, the signal was 1024 points FFT transform, check after the completion point, divided into four vectors, the four vectors form a matrix, then for each vector transpose, re-integration, which will achieve a return to close the process.)

lms即最小均方误差算法，此次上传的是lms算法的matlab文件(lms that minimum mean square error algorithm, the uploaded file is lms algorithm matlab)

基于ANSYS APDL二次开发的航电设备的动力学扫频分析，载荷输入条件为交越频率以下为恒定位移，交越频率以上为恒定加速度。我将加速度输入转换为位移输入，将位移和加速度两段输入载荷统一按照位移载荷输入，将位移存入表数组，利用ANSYS APDL自动将扫频范围内的位移载荷存入表数组，并循环加载计算，实现了该工程结构的正弦扫频振动分析。(Kinetic sweep analysis, load input conditions of secondary development based on ANSYS APDL avionics for the crossover frequency less constant displacement, above the crossover frequency is constant acceleration. I will convert the input displacement input acceleration, displacement and acceleration loads unity in accordance with the displacement of the two input load input, the displacement of the array into the table using ANSYS APDL automatically load displacement within the sweep range of the array into the table, and cyclic loading calculated to achieve a swept sine vibration of the project structure.)

包括脚本文件和函数文件形式，包括调制，解调，信噪比计算，针对EMD方法的不足。( Including script files and function files in the form, Includes the modulation, demodulation, signal to noise ratio calculation, For lack of EMD.)

simulink的仿真基础 内容详尽 讲解具体适用于simulink4.0以上版本(simulink simulation on the basis of specific detailed above apply to simulink4.0)

this code is speech recog nition based on gaussian nodel

用最小二乘法反应雷达得到的图像，得到各种数据特征参数(Reaction of the least square method to obtain the radar image data to obtain various characteristic parameters)

在matlab环境中自动识别连通区域的大小,GSM中GMSK调制信号的产生，matlab开发工具箱中的支持向量机。( Automatic identification in the matlab environment the size of the connected area, GSM is GMSK modulation signal generation, matlab development toolbox support vector machine.)

MATLAB时频工具箱，比较完整，欢迎大家下载(Time-frequency MATLAB toolbox, relatively complete, welcome everyone to download)

Exponential distribution function by uniform distribution function