spreading

说明：  上采样和内插，使得系统中同时出现的窄带信号和宽带信号能够采用适合本信号的采样率(On sampling and interpolation, making the system at the same time, the narrowband signals and broadband signals can be used for the signal sampling rate)

MIMO与LDPC结合，很好的代码，其中是用QCLDPC码，(MIMO and LDPC combination of good code, which QCLDPC code )

this program determines the area of a cardiod using monte carlo simulation. its very helpful

reduction to papr in ofdm with Peak Windowing: The basic idea of peak windowing is to multiply the envelope of OFDM signal with a weighting function . Therefore, ~xE (t)= xE (t) f (t) where XE(t) =[x(t)] The weighting function given by: f (t)= 1-Σ α .w(t- t ) t-t w(t) : is the window function. t : denotes the position of a local maximum of the envelop xE(t) . α : attenuation constant . When the amplitude of envelop amplitude of the OFDM signal exceeds a threshold, a window function is applied to the envelop of the OFDM signal to eliminate the peak amplitude. windowing results in a smooth signal. Hanning window function will be used for w(t) As a matter of fact , other windows such as cosine, hamming and Kaiser may be employed.

Determinant of the permutation matrix with rows ordered by p.

[matlab在数学建模中的应用]一书源代码( "Matlab mathematical modeling," a book source code)

利用MATLAB实现的图像的特征匹配，对于图像拼接和全景图像生成至关重要(MATLAB implementation of the image using the feature matching, image stitching for panoramic images and to generate essential)

本书主要介绍matlab的基本使用方法，适用于matlab初学者，很实用，很精简。(this book introduces the application method of matlab.it is helpful for the beginner of matlab.)

说明：  协同网络中继选择算法 一种是基于门限的最大信噪比选择；另一种是基于门限的最小误码率选择，我们将选择一条最佳的中继链路和源节点到目的节点的直接传输链路在目的端进行最大比合并(Research on relay selection algorithm in cooperative wireless Networks)

本文为Stephen J.Chapman《MATLAB 编程（第二版）》英文影印版的中文译本，这本 书对初学者很好的入门教材(This article Stephen J.Chapman MATLAB Programming (second edition), the English version of the Chinese translation of photocopying, this A good book for beginners introductory textbook)