comunication-

matlab一些典型例程，供初学者使用，互相学习啊，(matlab some typical routines, for beginners to use and learn from each other, ah,)

子波分析是一种日益获得广泛应用的信号处理新技 术, 具有良好的时-频局部化特性, 尤其适用于时变及非平 稳信号。本文简述了子波函数与子波展开的基本概念, 利用 展缩子波和调和子波将信号及信号均方值进行时-频两维 分布。最后采用了三种子波分析方法对轴承故障进行诊断, 即使对现有各种方法尚难以诊断的滚动体故障, 也能获得 满意的结果, 说明子波分析的确为机械故障诊断提供了强 有力的分析手段。(Wavelet a nalysis, as a new technique of signal processing , possesses ex cellent characteristic of time-frequency localization and is suitable for analyzing the time-var ying or transient signals. In this paper , the basic concepts of wavelet function and wavelet expansion are briefly introduced. The time frequency distribution of signal and its energy are obtained by decomposition via dilating wavelet and harmanic wavelet. )

说明：  一个遗传算法的函数优化，求函数的最小值，matlab编写的程序(A genetic algorithm for function optimization, seeking the minimization, matlab program written)

在一个OFDM系统中,一大批正交、重叠,狭窄的subcarriers衰落、传递并联,除可用的传输带宽。分离的理论,subcarriers最小，这是一个非常紧凑的频谱利用率。OFDM主要是由于该系统如何处理多路径干扰在接收机。多路径生成 (In an OFDM scheme, a large number of orthogonal, overlapping, narrow band sub-channels or subcarriers, transmitted in parallel, divide the available transmission bandwidth. The separation of the subcarriers is theoretically minimal such that there is a very compact spectral utilization. The attraction of OFDM is mainly due to how the system handles the multipath interference at the receiver. Multipath generates)

多项式拟合！matlab 源码！！！ (Polynomial fitting！！！！！！！！！)

说明：  该算法是通过matlab语言编程实现。 实现推荐系统算法，基于内容的推荐算法，基于约束的推荐算法。(Matlab implements recommendation system algorithm, content-based recommendation algorithm, constraint based recommendation algorithm.)

精通matlab－综合辅导与指南（附例程）(Matlab-versed in a comprehensive counseling and guidance (with routine))

MATLAB下通过多种小波实验了解小波变换的原理教程及示例代码(MATLAB wavelet through a variety of experiments to understand the principle of wavelet transform tutorials and sample code)

PCM模型，利用simulink建立，可用于课程设计，直接在matlab中打开即可(PCM model)

利用有限元方法求解悬臂梁的振动问题,输入节点数可以算出前六阶振型，计算固有频率(Using the finite element method to solve the vibration problem of a cantilever beam, the input nodes can calculate the first six vibration mode, calculate the natural frequency)