knn_demo

matlab实现mimo-ofdm过程，国外牛人所寄(mimo-ofdm realize matlab process cattle were sent abroad)

fast calculation of image moments based on Fluss and Tuk s method described in "On the Calculation of Moments"

Histogram of letters and pair of letters from a text file.

该算法是粒子群算法和网格直接搜索算法的结合，具有稳定性高的优点。(This is a combination of particle swarm optimization algorithm and grid direct search algorithm.)

从先验概率中采样，计算权重，可实现对二维数据的聚类，采用偏最小二乘法，仿真效果非常好，随机调制信号下的模拟ppm，是机器学习的例程。( Sampling a priori probability, calculate the weight, Can realize the two-dimensional data clustering, Partial least squares method, Simulation of the effect is very good, Random ppm modulated analog signal under Machine learning routines.)

说明：  有用的matlab源，大家看一下是否有用啦。或许对你有帮助哦。(Matlab useful source, we look at whether it is useful to you. May be helpful to you, oh.)

行商问题是一个经典的NP完全问题,多人旅行商问题的求解则更具挑战性。以往对求解多人旅行商问题的研究局限于以所有成员路径总和最小为优化标准(Salesmen problem is a classical NP complete problem, many people are solving the traveling salesman problem more challenging. Solving the traveling salesman problem of many previous studies limited to minimize the sum of all the members of the paths to optimize the standard)

本文使用三维FDTD算法实现文献《Application of the three_Dimensional Method to the analysis if Planar Microtrip Circuits》IEEE trans. On MTT 1990 38(7)的一个矩形微带贴片天线的S11参数的计算。采用MATLAB编程完成数值计算，并与文中的结果进行了比较。(This three-dimensional FDTD algorithm using the document " Application of the three_Dimensional Method to the analysis if Planar Microtrip Circuits" IEEE trans. On MTT 1990 38 (7) of a rectangular microstrip patch antenna of the S11 parameter of the calculation. Complete the numerical calculation using MATLAB programming, and with the text of the results were compared.)

training a neural networks using error back propagation algorithm

电力系统暂态稳定仿真模型，设置了短路类型，绘制转速和功角曲线，可分析发电机转速和功角特性，可以设置不同的系统参数和短路类型。(Power system transient stability simulation model, set a short-circuit type, draw speed and power angle, generator speed and power angle characteristics, you can set different system parameters and fault types.)