pinpu

Background Subtraction

图像处理中的小波变换，matlab代码。非常好用哦(Wavelet transform in image processing, Matlab code. Very easy to use Oh)

runge kutta method.................

观察数据长度N的变化对DTFT分辨率的影响 这几个程序是老师写的 对于理解DTFT有很大帮助(Effect of observation data length N on DTFT resolution These programs are written by the teacher and are very helpful for understanding DTFT.)

matlab分析双边功率谱密度和单边功率谱密度(matlab analysis of bilateral and unilateral power spectral density power spectral density)

粒子群优化算法（PSO）是一种基于种群的随机优化技术，由Eberhart和Kennedy于1995年提出。粒子群算法模仿昆虫、兽群、鸟群和鱼群等的群集行为，这些群体按照一种合作的方式寻找食物，群体中的每个成员通过学习它自身的经验和其他成员的经验来不断改变其搜索模式。 (Particle swarm optimization algorithm (PSO) is a population based stochastic optimization technique, put forward by Eberhart and Kennedy in 1995. Particle swarm optimization (pso) algorithm on insects, herds, flocks and schools of fish swarm behavior, and these groups to find food in a cooperative way, each member of the group itself by learning experience and the experience of the other members to continuously change its search pattern.)

基于matlab环境，利用舍选法，逆函数法生成随机数(Based on matlab environment, using rejection method, the inverse function method for generating random numbers)

A radix-3 FFT for any N points. N is not limited to power of 3.

matlab 光线追迹，算法比较简单，可供初学者看看。(Matlab ray tracing, the algorithm is relatively simple, for beginners to see.)

二维波动方程的有限差分法，与解析解进行了误差比对(Finite difference method for two-dimensional wave equation)