GPS_weiju

函数逼近与曲线（面）拟合 种插值方法 数值微分 解线性方程组的直接方法(Function approximation and curve (surface) fitting kinds of interpolation method, numerical micro-decomposition of the direct method of linear equations)

1. 程序中Turbo译码采用了MAP,LOG-MAP，和MAX-LOG-MAP三种算法。 2. 以xxx开头的四个mat文件是四种给定的Turbo码在译码时用到的参数，保存下来的目的是 加快仿真的速度，如果你所仿真的Turbo码不是程序中列出的任意一种，你可以通过函数 trellis来生成自己的相关参数。 3. 程序支持1/2和1/3两种码率的Turbo码，其中1/2码率的Turbo码通过矩阵[1 0 0 1]打 孔得到。在译码时通过对打孔位置添0恢复成1/3码率的码字。 4. 程序中的信噪比表示Eb/N0，通过此参数求得N0，对发送信号进行加噪。(1 program in Turbo decoding using the MAP, the LOG-MAP, and three kinds of the MAX-LOG-MAP algorithm.)

DOA 估计技术作为第三代移动通信的关键技术之一，在无线通信中起着重要的作用，此技术有很多的算法，其中music是很重要的算法之一。(DOA estimation techniques as a third-generation mobile communications, one of the key technologies in wireless communications have played an important role in this technology have a lot of algorithms, which is very important to music as one algorithm.)

matlab安装后无法运行状况下的解决方案(the matlab installation can not run the solution under the condition)

Simulink Model of Direct Torque Control of Induction Machine

控制系统计算机辅助设计——MATLAB语言与应用(第2版)一书的源码(Control System Computer Aided Design- MATLAB Language and Applications (2nd Edition))

MATLAB教材学习资料，大家应该能使用的上matlab_netCDF_OPeNDAPmessage_for_whatnc.m.rar MATLAB教材学习资料，大家应该能使用的上(studying for matlab！)

本文的程序实现在屏幕上随机产生不同大小的雪花，并以不同的速度下降。相对于第一版，它在很多性能上做了优化，直接在桌面的上下文中绘制雪花。而且，现在也通过RedrawWindow，实现在桌面的图标(如任务栏)上绘制雪花了。你可以用它来学习GDI。(Falling Snow on Your Desktop! Part II This article explains how to create an application that makes it snow on the desktop. Since my previous article was published, I received many user inquiries about how to improve the program. This article demonstrates how to create snow flakes that fall on your desktop, by using the draw functions directly in the desktop context. When the application starts, it creates an array of snow flakes and starts the timers for each flake. Manipulation of the RedrawWindow function allows the drawing of flakes behind and over the desktop icons, making the application more impressive. )

说明：  基于matlab的直接序列扩频系统抗干扰性能仿真(Simulation of Anti-jamming Performance of Direct Sequence Spread Spectrum Communication System Based on MATLAB)

Class Instance Source Code for Andriod.