C_TS

matlab code for finite element method

基于希尔伯特黄变换的抖动分析的有用EMD分析工具(Hilbert-Huang Transform Based on the analysis of jitter analysis tools useful for EMD)

谐波信号提取程序，可以用于信号谐波分量的分离(The harmonic signal extraction procedures, can be used for separation of signal harmonic component)

CAO、FNN算法计算混动时间序列的延迟时间(CAO delay time)

该代码实现了以2为因子的图像升采样和降采样功能。 降采样包括使用平滑滤波器(with using the averaging filter)和不使用平滑滤波器(without using the averaging filter)两种方法。 升采样包括像素点直接复制(pixel replication method)和线性插值(bilinear interpolatoin method)两种方法。 降采样方法和升采样方法共有4种组合。程序运行后，给出了一个原始图片和四个结果图片。 图片1.原始图片。 图片2.平滑滤波器降采样&像素点直接复制升采样。 图片3.平滑滤波器降采样&线性插值升采样。 图片4.不使用平滑滤波器降采样&像素点直接复制升采样。 图片5.不使用平滑滤波器降采样&线性插值升采样。 (The code to achieve a 2-factor image upsampling and downsampling function. Down-sampling (with using the averaging filter) and do not use smoothing filter (without using the averaging filter) are two ways to use the smoothing filter. Upsampling including the pixels copied directly (pixel replication method) and linear interpolation (bilinear interpolatoin method) two methods. Down-sampling method and liters a total of four combinations of sampling methods. The program is running, it shows a picture of an original picture and four results. Picture 1 original picture. Photo 2. Smoothing filter downsampling & the pixel directly copied liter sample. Photo 3. Smoothing filter downsampling & the linear interpolation liter sampling. Picture 4. Smoothing filter down-sampling & the pixels directly copied liter sampling. Picture 5. Use smoothing filter down-sampling & the linear interpolation liter sampling.)

matlab si sis sir 的程序及做图，需要的可以看看(matlab si sis sir)

说明：  拓扑优化常用优化算法，移动渐进线方法，内含详细的程序说明，指出使用改算法的具体操作(Topology optimization commonly used optimization algorithm, method of moving asymptotes, contains detailed program description, and points out the specific operation of the modified algorithm)

draws lines when two or more points are selected on the image

时频分析，窗宽对信号恢复的影响 以及差值分析(Time-frequency analysis, the impact of the window width and the difference signal recovery analysis)

fft fft folder contains fft and crop an image.