pca

Euler s method for integration of a single, first order ODE

PSO粒子群算法解决旅行商问题的MATLAB源码(PSO PSO algorithm to solve the traveling salesman problem MATLAB source)

本程序仿真了AWGN信道下，采用DS扩频对bpsk信号的影响，扩频码采用walsh码，扩频因子16； 接收端进行rake接收，然后分集合并，比较了三种分集方式对误码率的影响 从图像可以看出在扩频因子较高的情况下，最大比值合并与等增益合并性能相近(This program simulates the AWGN channel, using DS spread spectrum signal for bpsk influence spreading code using walsh code spreading factor 16 Rake receiver receiving end, and diversity combining, diversity compares three methods on the bit error rate of As can be seen from the image in the case of higher spreading factor, the maximum ratio combining and equal gain combining similar performance)

网上下载的一个程序开发的示例程序，很实用(Download an example of a program development process, it is practical)

用有限差分法、多项式拟合方法和三次样条插值方法对离散数据进行数值微分(Using the finite difference method, polynomial fitting method and cubic spline interpolation method for numerical differentiation of discrete data)

电话按键的程序。提示你输入电话号码，输出相应的信号波形。一次为单个号码波形和总波形。(Phone key procedures. Prompts you to enter a phone number, the corresponding output signal waveform. No time for a single wave and the total waveform.)

利用Matlab模拟点电荷电场的分布,输入两个电荷的电量大小(Distribution Distribution Distribution use of Matlab simulation point charge electric field distribution using Matlab simulation point charge electric field simulation using Matlab point charge electric field distribution point charge electric field simulation using Matlab Matlab simulation of the electric field of a point charge)

说明：  K-means聚类，将多个点根据各自的坐标，一定的算法分析，在matlab上可以看到聚类结果图像，帮助人们更好的分类不同的点，确定选址问题(K-means clustering, according to the coordinates of multiple points, a certain algorithm analysis, in Matlab can see the clustering results image, help people better classify different points, determine the location problem.)

Tools for regression

this package can simulate a rayleigh multipath fading channel .by running the ,exam.m, the channel will be simulated.,siglfade can simulate a simple rayleigh channel . multipath.m use delay and siglefade to simulate a multiath fading channel.