Chap4-Forces

说明：  用matlab编写的一种依赖坐标的图像分割方法，即动态阈值分割法(using Matlab prepared by the coordinates of a reliance on image segmentation method, that is, dynamic thresholding segmentation method)

该m文件是数字信号处理实验课上的实验5：谱分析(This document is an experimental 5 m digital signal processing on the experimental class: spectral analysis)

不同信噪比噪音的维纳滤波程序，matlab实现(Different signal to noise ratio of noise Wiener filtering procedures, matlab implementation)

通过这一算法可以实现二维平面内无人机的路径规划。在该平面内存在已知的障碍，势场法通过给终点添加引力，对障碍增加斥力，使得无人机能够顺利的避障并到达终点。通过对传统势场法的改进，避免了无人机容易陷入极值的问题，使搜索更易实现。(Through this algorithm, the path planning of the UAV in the two-dimensional plane can be realized. There are known obstacles in the plane. The potential field method adds gravity to the terminal to increase the repulsion for obstacles, so that the UAV can avoid obstacles and reach the terminal smoothly. Through the improvement of the traditional potential field method, it avoids the problem that the UAV is easily trapped in the extreme value and makes the search more easy to be realized.)

说明：  基于MATLAB的Harris特征点的检测(harris feacture points detector)

在国外网站下载的关于卡尔曼滤波的matlab编程程序，供参考。(the Matlab program ，downloaded from a foreign website，is about Kalman Filter，just as a reference。)

多维小波matlab工具箱，可以和matlab自带的小波工具箱配合使用。(Multi-dimensional wavelet toolbox matlab, matlab can bring their own use of the wavelet toolbox.)

  最小费用最大流算法通用Matlab函数 基于Floyd最短路算法的Ford和Fulkerson迭加算法   基本思路：把各条弧上单位流量的费用看成某种长度,用Floyd求最短路的方法确定一条   自V1至Vn的最短路 再将这条最短路作为可扩充路,用求解最大流问题的方法将其上的流   量增至最大可能值 而这条最短路上的流量增加后,其上各条弧的单位流量的费用要重新   确定,如此多次迭代,最终得到最小费用最大流.( Minimum cost maximum flow algorithm for general Matlab functions based on the Floyd shortest path algorithm of Ford and Fulkerson superposition algorithm of the basic ideas: the cost of unit flow on the arc as a certain length of Floyd for the most short-circuit method to determine the one percent V1 through Vn are the most short-circuit then this short circuit as a scalable road, a method for solving the maximum flow problem on flow increased to the maximum possible value that the shortest way increased traffic, the cost of unit flow on each arc sure, so many iterations, the final minimum cost maximum flow.)

circular convolution and some matlab codes

说明：  基于matlab，计算信号功率谱，调用了高阶谱分析工具箱的函数 bispecd 和 bispeci计算信号的双谱(Calculate signal power spectrum and bispectrum based on matlab)