xianxingguihua

对于移动通信系统主要有两类衰落：大规模衰落和小规模衰落。大规模衰落表示由于大范围内移动而引起的平均信号能量的减少或路径损耗。而小规模衰落则表现为两种机制：信号的时延扩展和信道的时变特性。对于无线应用，信道的时变特性是由于发射机和接收机相对移动而造成传输路径的变化。这些传播条件的变化速率影响衰落率。如果存在大量反射路径而不存在视行信号分量，此时的小规模衰落称为瑞利衰落(Rayleigh fading)，接收信号的包络由瑞利概率分布函数统计描述。这种衰落也就是这次实验我准备研究的(system for mobile communications fading there are two main categories : large-scale and small-scale fading fading. In view of large-scale decline of large scale movement of the average energy of the signal path to reduce or loss. And the decline of small-scale, it was manifested as two mechanisms : signal delay expansion and channel time-varying characteristics. For wireless applications, channel time-varying characteristics as transmitter and receiver relative movement caused transmission path changes. These conditions spread of the rate changes affect the rate of decline. If there is a large number of pathways exist without depending on the signaling component, At that time, the decline of small-scale known as Rayleigh fading (Rayleigh fading). The received signal envelope from Rayleigh )

13 convolutional encoder

说明：  基于DCT的数字水印技术论文，及相关的源代码(ji yu DCTde shuzi shuiyin jishu ,ji xiangguan wendang )

实现语音的处理，如语音分离、语音去噪、变频、回旋、回声等功能(Voice processing, such as speech separation, de-noising voice, frequency, swing, echo, and other functions)

MatlaB与C++接口若干问题解析，详细讲述了Matlab与C++在对接时的关键点(MatlaB and C++ interface to resolve a number of issues in detail about the Matlab and C++ when the key points in the butt)

学习matlab的好资料第3部分，再此共享下啦。参考参考(Good information to learn matlab Part 3, then under this shared friends. Reference Reference)

说明：  信号稀疏度K与重构成功概率关系曲线绘制例程代码(K signal sparsity and Reconstruction success probability plots draw sample code)

matched filter based spectrum sinsing in cognitive radio networ

采用matlab编写的药物相关性分析程序。 相关性分析的算法写得不好，主要供学习matlab界面编写、参数传递的朋友参考(using Matlab prepared by the analysis of drug-related procedures. Correlation analysis of the algorithm is not well written, mainly for the preparation of learning Matlab interface and parameter passing reference to a friend)

白噪声过程的功率谱 自相关函数和功率谱(The power spectrum of the white noise process autocorrelation function and power spectral)