PCAxmeas_fault1

一、 本程序采用16QAM调制方式，对一串2进制信源进行调制，采用（7，4）循环码对信源做信道编码，用升余弦滚降函数进行基带调制，再调到高频信道；在信道上加入高斯白噪声，运用匹配滤波器解调，画出解调星座图，运用最小欧氏距离译码判决，再对信号进行信道解码，画出采用信道编码技术和不采用信道编码技术的误比特率图。(First, this program uses 16QAM modulation mode, for a string of two binary source is modulated, using (7,4) cyclic code of the source-channel coding to do with a raised cosine roll-off function for base-band modulation, and then transferred to a high frequency channel in the channel by adding Gaussian white noise, the use of matched filter demodulation, demodulation constellation plot, using the minimum Euclidean distance decoding decision, and then right channel signals, decoding, channel coding techniques used to draw and non- channel coding techniques using bit error rate plans.)

amplitude modulation usinng matlab coding

PCA for the feature transfort

说明：  ％--- 基本粒子群优化算法（Particle Swarm Optimization）--- ----- ％--- 名称：基本粒子群优化算法（PSO） ％------作用：求解优化问题 ％------说明：全局性，并行性，高效的群体智能算法 (--- Elementary particle swarm optimization algorithm (Particle Swarm Optimization)----------- Name: Elementary Particle Swarm Optimization (PSO )------ role: Solving optimization problems------- Description: overall, parallelism and efficient swarm intelligence algorithm)

这是关于扩频的一些基本知识,希望能对大家有帮助.(this is about spreading some basic knowledge, we want to help.)

In practical implementations, the weighting factors for a MRC system are obtained by deriving a signal which has amplitude proportional to the kth branch carrier amplitude and a phase that LMS equalizer

觉得很好的一个Matlab程序想和大家一起分享，互相学习。(A Matlab program feel good and you want to share, learn from each other.)

说明：  利用非线性动力学的知识研究混沌行为，可以通过画运动的分岔图来研究参数变化对运动的影响，本程序以洛伦兹力为例子实现了分岔图的绘制(Knowledge of the nonlinear dynamics of chaotic behavior, can 通过 Painting Movement of the bifurcation diagram to study the impact of parameters on the movement, this program in order to achieve the Lorentz force as an example of bifurcation diagram drawing)

一个实用的形态分析程序，可以将RGB形态转化为HSI！(A practical shape analysis program can be RGB form into HSI!)

用matlab编写BP神经网络实现数据信号分类，本例为语音信号分类(BP neural network with matlab write data signal classification, classification of speech signal in this case)