zhifangtu

利用小波变换将信号中的各频率分开，得到低频信号和高频信号(Wavelet transform of the frequency of the signal separated by low-frequency signal and high frequency signals)

空间矢量脉宽调制控制永磁同步电机调速matlab仿真文件(Space vector pulse width modulation control of Permanent Magnet Synchronous Motor Drives Matlab simulation file)

pitch esimation material

自由光通信中，采用4ppm调制，VBLAST编码的译码算法(Free optical communication, the use of 4ppm modulation, VBLAST encoding decoding algorithm)

本组设计的声音导引系统使用双MCU结构，采用基于时间差的声源定位算法（利用三路接收器的时差信号）结合PID算法判断并控制移动声源的速度。本设计的特色在于使用四阶Butterworth带通滤波器对声音信号进行处理，使其具有较强抗干扰能力。且系统设计性价比高，功耗低。(Our group design the Sound Guidance System based on Bi-MCU configuration, using time difference sound source orientation arithmetic（the time difference signal from three receivers）combining PID arithmetic to determine and control the mobile sound source’s velocity. The feature of the designation is processing the sound signal by four-order Butterworth band-pass filter. This enhances the anti-jamming ability. Furthermore, the system has the high performance and low price.)

提供一位搜索方法黄金分割法，比较简单实用。(GoldenSectionMethod)

四种MATLAB时程分析方法，如中心差分法，Wilson法等，包含主程序。(time-procedure analysis)

a matlab cod for generating seismic standard noise in your trace

机遇matlab软件信号传输模拟，可以模拟卫星信号传输全过程(jiyu matlab ruanjian xionhao )

附加包含蓝牙调频系统的simulink模型，包含信号传输，接收，谱分析，误码分析等。(The additional Bluetooth FM system simulink model that contains the signal transmission, reception, spectral analysis, error analysis.)