som算法 组织神经网络用于图像分割matlab实现

signals and systems basics

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和VC++混合编程的详细教程，相信对大家一定会有帮助！(matlab and VC++ mixed programming detailed tutorial, I believe we must help!)

简要介绍了怎么使用matlab求解最大值最小值问题，比较适合新手初学使用(A brief introduction to how to use matlab for solving the maximum-minimum problems, and more suitable for the novice beginner)

说明：  基于bp神经网络的孤立词识别，有训练好的鼓励词，是语音识别的基础。(Isolated word recognition based on bp neural network trained to encourage word speech recognition.)

求切比雪夫窗函数和频谱；求凯塞窗函数和频谱；求凯塞窗函数和频谱等等滤波器的设计的一些程序(Some programs seek Kaiser window function and spectrum, and so the filter design seeking Chebyshev window function and spectrum seek Kaiser window function and spectrum)

说明：  Improving the Performance of Cell-Edge Users in non-orthogonal multiple access NOMA Systems using Cooperative Relaying its really so benificial code

MATLAB中介绍简要的降低PAPR的pts编码方案，并给出了源码(Briefly described in MATLAB PAPR reduction coding scheme, and gives the source)

使用周期图法进行谱估计，主要使用自相关算法和直接法(We use the periodogram method to estimate the spectrum, mainly using autocorrelation algorithm and direct method.)

说明：  基于LCL的单相有源阻尼并网逆变器的matlab仿真。单相LCL并网逆变器，电容电流反馈提高系统阻尼，抑制谐振，matlab版本是2016b,调制方式是spwm。(Matlab simulation of single-phase active damping grid-connected inverter based on LCL. Single-phase LCL grid-connected inverter, capacitive current feedback improves system damping and suppresses resonance. The matlab version is 2016b and the modulation method is spwm.)