DSSS

协作OFDM简单实现，采用AF模式，分析其性能(This file is simply realizing cooperative OFDM communicaiton about AF mode)

matlab正交频分复用(OFDM)技术matlab实现仿真源代码(matlab orthogonal frequency division multiplexing (OFDM) technology to achieve simulation source code matlab)

实现dsb、ssb和Am调制信号，很简单，可以在输入屏处按键控制(Achieve dsb, ssb, and modulated signals Am)

产生一个余弦波，为通信系统提供一个余弦载波(To generate a cosine wave, as a cosine-carrier communication system)

matlab中的mapminmax函数，可以直接使用(matlab' s mapminmax function, can be used directly)

y=d2wavelet(x,Fs,level) does the 2nd order Daubechies Wavelet Transform of signal x with a sampling frequency Fs and the DWT is decomposition is done upto a level It returns the matrix of all decompositions and the final approximations. Instead of using the matlab s inbuilt DWT function, this file explains the algorithm for DWT. Mostly useful for learning & academic purposes. For other wavelets, the filter values alone can be changed or WFILTERS can be used. The function basically is for Condition Monitoring of rotating equipments by vibration based bearing fault diagnosis by the author. Example: clear all t=[0:0.0003:8*pi] x=sin(5000*t)+sin(1000*t) x=x(1:2^16) level=5 Fs=1/0.003 d2wavelet(x,Fs,level) Thanks for Downloading. Don t forget to rate or comment.

一种二维混凝土随机生成程序，可以改变骨料大小，边界大小(a method to crete 2 dimension concrete )

说明：  古诺博弈例题，可以观察博弈过程，并根据程序自己求博弈纳什均衡点(Cournot game example, can observe the game process, and according to the program to find the game Nash equilibrium point)

This code proved to an efficient code for image compression using wavelet transform

Function to download historical price data from yahoo!finance