bp_network

小波图象分割!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!MATLAB原程序(wavelet image segmentation !!!!!!!!!!!!!!!!!!!!!!!!!!!!!! !!!!!!!!!!!!! MATLAB original program)

Digital image processing, polygonal approximation piecewise-linear method

系统主要功能：中央指导预报转换，市县指导预报转发，专业预报自动生成，雨量查询，Micaps资料摘取(Main functions: central guidance forecasts conversion, counties guide forecast forwarding, automatic generation of professional forecasts, rainfall query, Micaps material removal)

用K均值算法和C模糊算法对sonar数据和iris数据进行分类。 K均值算法是一种很常用的聚类算法，其基本思想是，通过迭代寻找K个聚类的一种划分方法，使得用这K个聚类的均值来代表各类样本是所得到的的总体误差最小。 模糊C均值（FCM）算法在K均值算法的基础上，用模糊子集代替确定子集，从而得到模糊的分类结果，即分类结果的模糊化。(Sonar data and iris data are classified by means of K mean algorithm and C fuzzy algorithm. The K mean algorithm is a very common clustering algorithm. Its basic idea is to find a partition method of K clustering by iteration, so that the average error of the mean of the K clustering is minimized. The fuzzy C mean (FCM) algorithm is based on the K mean algorithm. The fuzzy subset is replaced by the fuzzy subset, thus the fuzzy classification result is obtained, that is, the classification result is fuzzed.)

jpeg 压缩matlab源代码，适合matlab和图像处理初学者(jpeg compression matlab source code, suitable for beginners and image processing matlab)

二进制相移键控(模拟调制方法)，樊昌信《通信原理》内容(Binary phase shift keying (Analog modulation methods), Fan Changxin " Communication Theory" content)

A program for solving laser diode rate equation under feedback and plot the two fields dynamics versus time>

蒙特卡洛随机相位屏 用于模拟大气湍流 只需要调节一定的参数(Monte Carlo random phase screen is used to simulate atmospheric turbulence only need to adjust certain parameters)

pso算法优化25杆桁架结构，得到更好的结果(The PSO algorithm optimizes the 25 bar truss structure and gets better results)

说明：  利用六点格式有限差分求解单波方程，精度为四阶(Using six point finite difference scheme to solve single wave equation, the accuracy is fourth order)