Turbo_code_simulation

basic sicrete fourier transform

说明：  watterson信道模型，包含四种模型，有3径和4径两类(watterson channel model, including the four models, there are two types of 3 tracks and 4 tracks)

This code is to find standard deviation of wind speed data

说明：  matlab链码，计算连通区域周长，基于玉米图像预处理自行编写(matlab chain code to calculate the circumference of the connected region)

喷泉码的编码算法，基于混沌理论，采用鲁棒孤子分布(Fountain Codes Encoding Algorithm )

说明：  MATLAB国外经典，英文学习好的可以下载学习啊。(MATLAB foreign classics, and English learning good study can be downloaded ah.)

对目标的运动进行了卡尔曼滤波跟踪，此程序的特点是进行了三维仿真(Kalman filter tracking the movement of the target, the characteristics of this program is a three-dimensional simulation)

矢量算法，计算声源位置。速度比较快，精度很高。(Vector algorithm to calculate the location of a sound source. Relatively fast speed, high precision.)

说明：  基于MATLAB牛顿拉夫逊法进行潮流计算(MATLAB-based Newton Raphson power flow calculation method)

In MATLAB, usually we use function bvp4c() to solve boundary value problem (BVP) of ODE. However, we also can use function ode45() to solve BVP of ODE too. However, ode45() needs all initial values at one point. Therefore we have to construct an auxiliary function, whose input argument is the missing initial value and the return output is the given boundary value, Then we can call function fsolve() to get the missing initial value. This method is particularly efficient it the ODE has one or more parameters. Also this method is essentilal for GNU Octave, because whose function bvp4c() is not programmed for parameter ODE yet.