work

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 )

图像恢复的几个程序，旋转恢复是用vc写的，其余是matlab的，这几个程序比较挑图像，如果一幅效果不好，换一个做，图像恢复程序大都这样。()

一个用matlab进行数字信号处理的例程，包括复到谱和功率普(a digital signal processing routines, including Minute spectrum and power to Cape)

Matlab圆弧插补程序(显示圆心)，完善上个不能无法显示圆弧圆心的缺陷，能够标记圆心，显示圆心坐标(Matlab circular interpolation procedure (display center), the perfect can not can not be displayed in the center of the arc defects, to mark the center of the circle, and display center coordinates)

说明：  matlab信道模型，用于模拟多用户下用户间干扰的模型。(Matlab channel model for the simulation of multi-user interference between users under the model.)

本程序采用显示方案实现“平均曲率运动(MCM)”模型(realize the MCM model)

该惯性导航系统工具箱（INS）就是专门为这个目的设计的。这个工具箱可以用来模拟仿真载体动力学，处理原始测量值（加速计上的delta-V数据和陀螺仪上的delte-theta数据）和数据。(The inertial navigation system (INS) is specially designed for this purpose. The kit can be used to simulate carrier dynamics, processing raw measurements (accelerometer delta-V data and gyroscope data delte-theta) and data)

MIT归一化算法，基于MIT自适应律的模型参考自适应模型，对自适应律进行了归一化处理，消除输入对系统稳定性的影响(MIT normalization algorithm, MIT adaptive law based model reference adaptive model of adaptive law were normalized to eliminate the influence of input on system stability)

定时自动发送邮件,在邮件末尾添加 “你好，这份邮件是我用MATLAB发的”(Timing automatically send e-mail in the mail the end of the add Hello, this message is issued with MATLAB ")

说明：  对地震波进行数值模拟，设置不同波速的分界面模拟地震波传播(Seismic wave numerical simulation under different wave velocities)