Lasso_code

power factor correciton

This is a fast non-iterative ellipse fit, and among fast non-iterative ellipse fits this is the most accurate and robust. It takes the xy-coordinates of data points, and returns the coefficients of the equation of the ellipse: ax^2 + bxy + cy^2 + dx + ey + f = 0, i.e. it returns the vector A=(a,b,c,d,e,f). To convert this vector to the geometric parameters (This is a fast non-iterative ellipse fit, and among fast non-iterative ellipse fits this is the most accurate and robust. It takes the xy-coordinates of data points, and returns the coefficients of the equation of the ellipse: ax^2+ bxy+ cy^2+ dx+ ey+ f = 0, i.e. it returns the vector A=(a,b,c,d,e,f). To convert this vector to the geometric parameters )

说明：  用MATLAB对一语音信号进行小波分解，分别用强阈值，软阈值，默认阈植进行消噪处理。(MATLAB to a voice signal wavelet decomposition, respectively intensity threshold, soft threshold, the default threshold for planting Denoising.)

matlab函数“LFM.m”计算和画出LFM波形的幅度谱。(matlab function " LFM.m" calculate and plot the amplitude spectrum of LFM.)

对阵列波导光纤光栅AWG进行仿真分析，并得出相关结果(Arrayed waveguide grating AWG for simulation analysis and draw relevant results)

永磁同步电机矢量控制的仿真搭建，基于PID控制以及滑模控制，分数阶PID控制和分数阶滑模控制等(Permanent magnet synchronous motor vector control simulation, based on the PID control and sliding mode control, fractional order PID control and the fractional order sliding mode control, etc )

用matlab仿真的八路时分复用系统，包括变速复接巴克码解复(Matlab simulation with eight-way time-division multiplexing system, including the Barker code transmission multiplexing demultiplexing)

自己写的一个谱减法，在信噪比不太低的时候效果还不错。(one matlab program. the effect is not bad when SNR is not lower.)

基于BP网络的语言识别，选取民歌、古筝、摇滚和流行四类不同音乐，用BP神经网络实现对这四类音乐的有效分类。(Speech recognition based on BP network, songs, zither, four different types of rock and pop music, with BP neural network classification of these four types of music valid.)

Ensemble修改程序，包括源程序和调用程序及实例。(Ensemble modify the program, including the source and call procedures and examples.)