OF123456

OFDM系统级的仿真，里面涉及到卷积编码，交织，qpsk调制等(OFDM system-level simulation, which relates to convolutional coding, interleaving, qpsk modulation)

MATLAB实现一种新的变步长的LMS算法，即对步长因子进行了改进，将步长因子与误差因子间建立函数关系提出变步 长LMS新的算法(MATLAB implementation of a new variable step size LMS algorithm, that step factor is improved, will be established as a function of time step size and the error factor proposed variable step The new long-LMS algorithm)

％radon transform clear all ％ N=800 n=1:N fs=200 t=n/fs x1=exp(j*2*pi*(5*t+0.5*5*t.^2)) x2=exp(j*2*pi*(5*t+0.5*15*t.^2)) x=x1+x2 ％N=length(x) ％ ambifunb(x ) ％*****************************************RAT naf=ambifunb(x) htl(abs(naf)) ％ [wh,rho,theta]=htl(abs(naf)) colormap([0,0,0]) ％ xlabel( 极半径 ) ％ ylabel( 角度 ) ％**************************************％找出峰值点的坐标,计算初始频率和调频斜率(正确) ％找出峰值点的坐标 b=max(max(wh)) [u,a]=find(wh>=0.8*b) ( Radon transformclear all N = 800 n = 1: N fs = 200 t = n/fs x1 = exp (j* 2* pi* (5* t+ 0.5* 5* t. ^ 2)) x2 = exp ( j* 2* pi* (5* t+ 0.5* 15* t. ^ 2)) x = x1+ x2 N = length (x) ambifunb (x)***************************************** RATnaf = ambifunb (x) htl (abs (naf)) [wh, rho, theta ] = htl (abs (naf)) colormap ([0,0,0]) xlabel (polar radius) ylabel (angle)************************************** to find the coordinates of the peak point, calculating the initial slope of the frequency and FM (right) find the peak point of the coordinates b = max (max ( wh)) [u, a] = find (wh)

说明：  关于工程数学应用 的，在Matlab环境下的一些实现(With regard to the application of engineering mathematics, in the Matlab environment to achieve some)

一个基于矩阵分布的改进型蚁群算法（ACO），可用于矩形区域分布的孔加工路径规划(A matrix based on the distribution of improved ant colony algorithm (ACO), can be used for regional distribution of hole machining rectangular path planning)

五种常用滤波函数，巴特沃兹低通滤波、中值滤波等(5 different functions of filter)

文件里包含了扩频系统中的m序列码的产生，产生以后的相关运算(File contains the m-sequence spread spectrum system code generation, is produced in the relevant operations)

Multivariable Frequency Domain Toolbox

逐步判别分析的主函数 用于分类 [sel,c,c0,re,P]=StepclaassV2(data,[50 50 50],data,10) 输入变量 x为训练集.每行为一个样本，每列为一个变量. Class_x,为训练集的分类情况，一行，为各类样本数量,例如[5 6 9] Test为待分类样本. 输出变量：sel为选择的变量序号，c,c0为拟合出的判别函数.re为对Test的判别结果,P为其后验概率. author 王新 2012.4.8 例子Sample: load fisheriris x=meas Class_x=[50,50,50] Test=meas(1:5,:) Fa1=4 [sel,c,c0,re,P]=StepclaassV2(x,Class_x,Test,Fa1)( Stepwise discriminant analysis for the classification of the main function [sel, c, c0, re, P] = StepclaassV2 (data, [50 50 50], data, 10) input variables x as the training set, each conduct a sample of each as a variable. Class_x, the classification for the training set, a row, the number of samples for all types, for example, [5 6 9] Test sample to be classified. output variable: sel for the selected variables serial number, c, c0 is fitted discriminant function. re discrimination results for the Test, P its posterior probability. author Wang 2012.4.8 examples Sample: load fisheriris x = meas Class_x = [50,50,50] Test = meas (1:5, :) Fa1 = 4 [sel, c, c0, re, P] = StepclaassV2 (x, Class_x, Test, Fa1))

匀速直线运动和匀加速直线运动下的航迹生成方法、航迹测量方法、五点建航方法，亲自调试能能比较有效的建立航路(Uniform motion and uniformly accelerated linear motion trajectory generation method, track measurements, five-point method built aircraft, personally commissioning can build more effective route)