ch1example3prg1

pca技术的一些使用方法，为MATlAB代码(very useful,you must like it )

Function Toolbox hope u like it

说明：  matlab经典算法源程序，包括插值与拟合、规划问题、绘图、解方程、数据分析等(classical algorithm matlab source, including interpolation and fitting, programming, drawing, solving equations, data analysis, etc.)

matlab 包括遗传变异，交叉等，包括计算结果等等。包括遗传算法。 (matlab yi chuan bian yi jiao cha bao kuo ji suan ji guo deng bao kuo yi chuan suan fa)

Simulink通信系统建模一书中的IS95前向链路系统仿真MATLAB源程序，包括word文档介绍，是非常好的通信系统仿真的学习参考资料(The book Communication Systems Simulink model of IS95 system simulation prior to the MATLAB source code link, including the word document describes, is a very good communication system simulation study reference)

说明：  熟悉OQPSK的基本原理、调制解调技术，掌握MATLAB中M文件的使用及相关函数的调用方法，在此基础上通过MATLAB编程来实现OQPSK的调制与解调(The goal of this design is to deeply understand the basic principle of OQPSk modulation and demodulation, learn how to use MATLAB software in the M file to realize OQPSk modulation and demodulation analysis and join the influence of different noise on the signal, the first to create a digital baseband signal and then the corresponding function in MATLAB the baseband signal modulation, and then analyses the waveform of the modulated, record the results of modulated signals after demodulation, observe the demodulation results and record, finally adding noise in the signal and then observe the changes of the time-frequency diagram, analyze the noise of the signal to noise ratio influence the result of the modulation.)

说明：  MATLAB小波分析与应用实例(第二版).应用于信号处理和图像处理的原理和基本方法，大量的示例可尽快地了解小波分析，而且在每种分析方法的介绍中同时介绍其问题背景，直接通过Matlab使用小波分析解决实际问题。 (MATLAB Wavelet Analysis and Applications (second edition). Applied to signal processing and image processing theory and the basic method, a large number of sample as soon as possible understanding of wavelet analysis, and analytical methods in each presentation also introduced the background of its problems, directly through Matlab using wavelet analysis to solve practical problems.)

说明：  智能天线设计，为经典教材，请下载使用，有问题及时联系。(Smart antenna design for the classic materials, please download ，there are problems, contact a timely manner.)

说明：  根据TCH/FS信道的技术标准，用MATLAB语言编写程序模块，实现编译码模块功能，仿真TCH/FS信道各模块，检验与测试它们的性能，对TCH/FS信道的纠错性能进行仿真及分析。(under TCH/FS access to the technical standards, using MATLAB language program modules to achieve encryption module function, simulation TCH/FS Channel modules, test and test their performance, the TCH/FS channel error correction performance simulation and analysis.)

这个程序的主要功能是用来提取特征。其中有分帧算法，并提取MFCC参数作为特征。(The program' s main function is to extract features. Partakers of which the frame algorithm, and extract the MFCC as feature parameters.)