Wavelet

该书详细描述了 matlab编程从入门到精通(Book describes in detail the matlab programming from entry to the master)

Evaluate frequency spectrum of signals

说明：  genetic algorithm with matlab

通信系统基础知识 Matlab应用软件的基本知识以及基本操作技能 数字调制与解调 用软件matlab完成一个典型的通信系统的仿真，其中信源，数字化方式，基带码，信道码，调制方式(Basic knowledge of the communication system The Matlab application software basic knowledge and basic skills Digital modulation and demodulation Use the software matlab completion of a typical communication system simulation, wherein the source, the digitized baseband code, channel code, modulation scheme)

本文介绍了完整的OFDM的系统设计，并在Matlab环境下进行了仿真(This article describes a complete OFDM system design, and in the Matlab simulation environment)

直接序列扩频系统（DS，Direct Sequence）又称为直接序列调制系统或伪噪声系统（PN 系统），简称为直扩系统，是目前应用较为广泛的一种扩展频谱系统。要传送的信息经伪随机序列编码后对载波进行调制。在发信端越冬用扩频序列去扩展信号的频谱，在收信端，用相同的扩频友序列进行解扩，将展宽的频谱扩展信号还原成原始信号。因为伪随机序列的速率远大于要传送信息的速率，所以受调信号的频谱宽度将远大于要传送信息的频谱宽度，帮称之为扩频(Direct sequence spread spectrum (DS, Direct Sequence) modulation system, also known as direct sequence or pseudo-noise system (PN system), referred to as direct expansion systems, is currently the more widely used as a spread spectrum system. To send the information encoded by the pseudo-random sequence of carrier modulation. End of winter in the letter to extend the signal with the spreading sequence of spectrum, in the end prepared to receive and use the same sequence spread spectrum despreading friends, broadening the spectrum to restore the original signal expansion signals. Because the rate of pseudo-random sequence is much larger than the rate of information to be sent, so the frequency spectrum by adjusting the width of the spectrum is much larger than the width of the information to be sent to help is called spread spectrum)

说明：  采用区域生长法和门限法对头像进行分割，程序中代码全由自己编写，直接运行main函数即可(A regional growth method and the threshold segmentation method picture, the program code is written entirely by themselves, can be directly run the main function)

关于主元分析的简单的小程序。适用于初学者。(Simple program about PCA. Suitable for beginners.)

包含一些通信系统的仿真程序 包括时间分集，频率分集，二时二频分集(Communication system contains some simulation program including time diversity, frequency diversity, frequency diversity two two)

Reed Solomon decoding algorithm