ds-cdma-matlab

可以直接对图形进行3次变换，对学习使用matlab图像处理的人或许有帮助(Graphics can transform it might be helpful to learn how to use matlab image processing)

这是高速路匝道控制的matlab源代码，用PID控制实现的，希望对大家有用。(This is an expressway ramp control matlab source code, using PID control to achieve, I hope useful for everyone.)

MATLAB的一些常用程序，都很简答，但很实用，适合初学者(MATLAB for some commonly used procedures are short answer, but very useful for beginners)

感知机算法(内含测试数据tic-tac-toe(三连棋游戏))(Perceptron algorithm (containing test data tic-tac-toe (three with chess games)))

主要内容(signal_analyzer.rar)如下： test1.txt 第一列为时间t，0.001s为步长；第二列为系统的输入信号；第三列为系统的输出信号。 signal_analyzer.m首先将test1.txt 的数据读入workspace，然后进行FFT，分析出两信号的频率，输出对于输入的幅值衰减（db），输出对输入的相位差。 (Main Content (signal_analyzer.rar) as follows: test1.txt the first time as t, 0.001s for the step the second as the input signal the third as the system output signal. signal_analyzer.m first test1.txt the data read into the workspace, and then FFT, the frequency of the two signals, the output amplitude for input attenuation (db), the output of the input phase difference.)

pi/4-dqpsk 调制解调 的 matlab 仿真，通过srrc滤波器实现16倍的上采样(pi/4-dqpsk modulation and demodulation matlab simulation, through srrc filter to achieve 16 times the sampling)

说明：  一些数值计算用的MATLAB代码,适合初学MATLAB和数字计算的人使用,根据MATLAB的矩阵思想编写，对初学者更好的把握MATLAB编程思想很有用(Some numerical calculation using MATLAB code, suitable for novice MATLAB and digital computing use, according to the ideological preparation of MATLAB matrix, for beginners to grasp a better MATLAB programming ideas useful)

说明：  matlab编写的粒子群优化算法，相当的好用，本人的压箱底的东西(matlab PSO prepared, very easy to use, what my bottom pressure)

用PSO优化LSSVM的参数，得到最优参数，使得分类更加准确。(Using the PSO the LSSVM the parameter, the optimal parameters, more accurate classification. )

fft带阻滤波器，简单实用，最干净的实现数字数据滤波；(fft band stop filter , simple and practical , the cleanest digital data filtering )