velocity

这是清华大学周红星教授关于时频分析的精彩论述！(This is the Tsinghua University, Professor Zhou Hongxing on time-frequency analysis of the wonderful discussion!)

非下采样轮廓波变换MATLAB工具箱，包含DEMO(Nonsubsampled Contourlet transform MATLAB toolbox, including DEMO)

对仿真信号进行快速傅里叶变换，再进行经验模态分解，再对每个分量求FFT(Simulation signal fast Fourier transform, and then empirical mode decomposition, and then seek FFT for each component)

语音信号的线性预测及其Matlab实现，可以自行录入WAV格式的语音信号使用。(Linear prediction of the speech signal and its Matlab, the use of the voice signal can input their own WAV format.)

This is the source code about OFDM under the condition of QPSK and perfect compensation.

永磁同步电机弱磁调速系统的仿真.在矢量控制的基础上进行改进，采用弱磁调速，可作为参考.(Permanent magnet synchronous motor speed control system simulation weakening in vector control on the basis of improved, using weak magnetic speed, can be used as reference.)

数字PID的matlab仿真程序，针对刘金琨的先进PID控制的matlab仿真，里面的部分程序进行了修改 第十章(Digital PID of matlab simulation program for Liu Jinkun matlab advanced PID control simulation, which part of the program were modified Chapter)

说明：  编程通过matlab仿真。确定突变结和非突变结击穿电压随P区和N区浓度的变化关系。(Programmed by Matlab simulation. Determine the abrupt junction and non-abrupt junction breakdown voltage variation with the concentration of P and N District.)

femto cells matlab code

MATLAB程序------材料力学简支梁剪力、弯矩及强度校核、截面设计(MATLAB program------ Mechanical Charpy shear, moment and strength check, cross-sectional design)