FD

Shortest Paths Algorithms

信道编解码中的turbo编解码程序，采用了多种解码算法，进行了性能比较，信道模拟高斯白噪声信道(Channel of the turbo codec codec procedures, using a variety of decoding algorithms, a performance comparison, channel analog Gaussian white noise channel)

设r是f(x) = 0的根，选取x0作为r初始近似值，过点（x0,f(x0)）做曲线y = f(x)的切线L，L的方程为y = f(x0)+f (x0)(x-x0)，求出L与x轴交点的横坐标 x1 = x0-f(x0)/f (x0)，称x1为r的一次近似值。过点（x1,f(x1)）做曲线y = f(x)的切线，并求该切线与x轴交点的横坐标 x2 = x1-f(x1)/f (x1)，称x2为r的二次近似值。重复以上过程，得r的近似值序列，其中x(n+1)=x(n)－f(x(n))/f (x(n))，称为r的n+1次近似值(Let r is f (x) = 0 root, select the initial approximation x0 as the r, over point (x0, f (x0)) to do the curve y = f (x) the tangent L, L the equation y = f ( x0)+ f ' (x0) (x-x0), find the intersection of L and the x-axis of abscissa x1 = x0-f (x0)/f' (x0), x1 is called an approximation r. Through points (x1, f (x1)) to do the curve y = f (x) the tangent, and find the intersection of the tangent with the x-axis of abscissa x2 = x1-f (x1)/f ' (x1), x2 is called r the second approximation. Repeat the process, get an approximation of the sequence r, where x (n+1) = x (n)-f (x (n))/f ' (x (n)), as an approximation of r n+1 times)

EM algorithm for Gaussian Mixture Model

the matlab code for lte simulation and 4g mobile

用MATLAB实现卡尔曼滤波，达到对动目标的实时跟踪，程序调试无误，完美运行。(Kalman filter using MATLAB to achieve real-time tracking for moving target, program debugging and correct, perfect run.)

改进的虚拟激励法，用于大型结构的随机频域计算，在建筑、航天、机械领域已得到广泛的应用。(Improved pseudo-excitation method for the large-scale structure of random frequency-domain calculation, in the construction, aerospace, mechanical field has been widely used.)

利用小波进行图形的降澡,对于一般的图像来说效果明显(Carries on the graph using the wavelet to fall the bath, is obvious regarding the general image effect )

car tracking with kalman filterring

可以计算不同雷洛系数下的紊流,非常方便!(The main code can compute different turbulence Venturello coefficients, very easy!)