The-finite-element-method

图像恢复（复原） 图像复原技术就是将图像退化过程模型化，并且采用相反的过程进行处理，以便复原出原始图像。例如，原始图像fig3_1.bmp由于退化变成了退化图像fig3_2.bmp。此图像的退化函数为： ，其中 ，M=366，N=364。请采用全逆滤波和不同截止半径的逆滤波对其进行复原，并与原图像fig3_1.bmp进行比较。再采用维纳滤波对其进行复原，并与逆滤波结果进行比较。 (图像恢复)

k-mean algorithme computation

this another program

floyd算法的matlab实现，最短路问题的一种解法(floyd algorithm of the Matlab implementation, the shortest path to a solution of the problem)

matlab实现本月轨道模拟,已经调试通过(matlab)

修正R-D成像算法，实现对运动点目标的正确成像！！(RD imaging algorithm is modified to realize the right of the moving point target imaging! !)

用matlab编程，程序将PCA算法用于图像中物体轮廓提取，可以看到在轮廓处，特征值会出现剧烈震荡(With matlab programming, program the PCA algorithm is used to extract the outline of objects in the image, you can see in the outline at the eigenvalues ​ ​ will be turbulent)

设计一个简单的GUI界面，对导入的音频文件进行时域特性分析。计算其时域波形、平均幅度、短时能量、短时过零率。对该音频文件进行加噪处理，分析其时域波形变化。设定一个固定时长，对该音频添加回声并保存为“*.wav”格式文件。 对音频文件的时域分析是对音频文件进行传输、降噪及其他再编辑的基础。其中短时能量可用作清浊音区分的标准和语音起始点的判断。短时过零率可用作判断有声段与无声段和从背景噪声中提取语音信号。 (Design a simple GUI interface that time domain characteristics analysis on import audio files.Calculate the average time domain waveform, amplitude, short-time energy and short-time zero crossing ratio.Add to deal with the noise of the audio files, analyze the changes in the time domain waveform.To set a fixed time, to add the audio echo and saved as a *. Wav format file. The time domain analysis of the audio file was transmitted to audio files, noise reduction and other editor again.The short-time energy voiced distinguish between standard and can be used as a clear voice starting point judgement.Short-time zero crossing ratio can be used as a judgment audio segment and silent segment and extract speech signal background noise.)

说明：  直驱风机模型，包括机侧和网侧控制，机侧控功率，网侧控母线(Direct drive fan model, including generator side and grid side control, generator side control power, grid side control bus)

说明：  bppid程序，非常有用，支持一下吧，这书很难找的(bppid program, very useful to support yourself, this book is difficult to find)