对组合巴克码的抗干扰仿真

fit_rayleigh_pdf - Non Linear Least Squares fit of the Rayleigh distribution. given the samples of the histogram of the samples, finds the distribution parameter that fits the histogram samples.fits data to the probability of the form: p(r)=r*exp(-r^2/(2*s))/s with parameter: s format:result = fit_rayleigh_pdf( x,y,W,hAx ) input: y - vector, samples of the histogram to be fitted x - vector, position of the samples of the histogram (i.e. y = f(x,a)) W - matrix or scalar, a square weighting matrix of the size NxN where N = length(y), or 0 to indicate no weighting is needed. hAx - handle of an axis, on which the fitted distribution is plotted output: result - structure with the fields s - fitted parameter VAR - variance of the estimation type- weighted LS or not weighted LS iter- number of iteration for the solution

很实用的移动通信多径干扰信道JAKE模型建模程序 (Practical mobile communication channel multipath interference modeling procedures JAKE)

说明：  在使用matlab示波器时运行该show.m即可以对示波器背景和线条颜色进行调整。(execute it when you want to change the color of the scope or the line。)

说明：  共轭梯度法是介于最速下降法与牛顿法之间的一个方法，它仅需利用一阶导数信息，但克服了最速下降法收敛慢的缺点(Conjugate gradient method is between the steepest descent method and Newton method between a method that only use the first derivative information, but the steepest descent method to overcome the disadvantage of slow convergence)

应用LMS算法，用Matlab编程实现线性预测.(Application of LMS algorithm, using Matlab Programming Linear Prediction.)

说明：  ASK仿真，包含调制解调，加高斯白噪声，matlab程序(ASK simulation, including the modem, add Gaussian white noise, matlab program)

说明：  使用MATLAB实现的粒子群优化算法，得出函数的最优解(MATLAB particle swarm optimization algorithm is used to obtain the optimal solution of the function)

this code is simple and usful code it is a matlab code that optimize PID parametrs using Generic Algorithm

这是一将动态矩阵控制算法利用一个function形式表达出来的，可以实现基本的控制。(DMC algorithm)

用MATLAB实现的离散系统灰色PID位置跟中系统(MATLAB implementation of the discrete-time systems with PID position with the system of gray)