2).convolution

说明：  录制一段个人的语音信号，并对录制的信号进行采样；画出采样后语音信号的时域波形和频谱图；给定滤波器的性能指标，采用双线性变换法和窗函数法设计滤波器，并画出滤波器的频率响应；然后用自己设计的滤波器对采集的信号进行滤波，画出滤波后信号的时域波形和频谱，并对滤波前后的信号进行对比，分析信号的变化；回放语音信号；最后，设计一个信号处理系统界面。(Record a personal voice signal, and recording the signal is sampled draw sampled speech signal time-domain waveform and frequency spectrum for a given filter performance, the bilinear transformation and design of filter window functions and draw the frequency response filter then filter of their own design collection of the signal filtering, to draw the filtered signal in time domain waveforms and frequency spectrum, and filtering the signal before and after comparison, analysis of signal changes playback audio signals Finally, a signal processing system interface design.)

matlab环境下的delete函数的用法，以及colormap函数的用法简介(the use of the function delete in matlab)

This is a matlab code (m file) for using finite element method to solve PDE

几种常见的融合方法，采用matlab编写(Several common fusion method, using matlab prepared)

关于恒功率LCL控制的控制模型，很好的滤波模型，可以运行。(The constant power control of LCL matlab simulation model)

Univercity of Bristol几个学生用6DOF（也即是GY-521三轴加速度+三轴陀螺）制作的测步器，可以看到他们成功测量出各轴旋转以及xyz轴的位移(Univercity of Bristol several students 6DOF (that is, GY-521 triaxial accelerometer+ triaxial gyro) produced measured steps, you can see their success measurement of the displacement of each axis and xyz axis)

FISTA block sparse 压缩感知加速恢复算法(FISTA block sparse)

Simulation of Speech Enhancement using Spectral Subtraction

涵盖了matlab常用命令，包括：管理用命令，管理变量与工作空间用命令，文件与操作系统处理命令，窗口控制命令等。(Matlab covers common commands, including: management of command, management, and working space with variable order, file with the operating system to process commands, window control orders.)

A code used to write data from matlab to the serial port