3

用功率谱进行跳频信号的检测，是一个行之有效的办法(With the power spectrum frequency hopping signal detection, is an effective way to)

训练集/测试集产生 load spectra_data.mat 随机产生训练集和测试集 temp = randperm(size(NIR,1)) 训练集——50个样本 P_train = NIR(temp(1:50),:) T_train = octane(temp(1:50),:) 测试集——10个样本 P_test = NIR(temp(51:end),:) T_test = octane(temp(51:end),:) N = size(P_test,2) 数据归一化 ( Training set/test set generation load spectra_data.mat randomly generated training set and test set temp = randperm (size (NIR, 1)) training set- 50 samples P_train = NIR (temp (1:50) ,:)' T_train = octane (temp (1:50 ),:)' test set- 10 samples P_test = NIR (temp (51: end ),:)' T_test = octane (temp (51 : end ),:)' N = size (P_test, 2) Data Normalization)

实现输入一串数字，然后matlab可以将数字对应的蜂鸣音播放出来（类似于电话的拨号）(Achieve input a string of numbers, then you can figure corresponding matlab beep play out (similar to dial-up phone))

说明：  对电力系统的负荷进行预测用BP神经网络实现(BP neural network for forecasting power system load)

倒立摆的matlab文件，要的可以下，可能有错误，应该是可以的(Inverted pendulum)

说明：  LMS算法的MATlab仿真分析，结果表明LMS算法有较好的噪声消除效果！(LMS algorithm MATlab simulation results show that the LMS algorithm has better noise reduction effect!)

Function to do PCA on an RGB image

利用高斯-勒让德多项式计算 sin(x+y)在矩形区域的积分(use Gauss- Legendre polynomials calculated sin (x y) in the rectangular region of Integral)

说明：  充分利用估计误差的比例,积分,微分信号考虑一类线性系统的参数化观测器设计问题,在加快观测器收敛速度的同时避免较大的超调.从理论上分析此类观测器设计的可行性,并从实际应用角度给出一种简单可行的参数设计方法.仿真实验表明:该观测器不但易于实现而且能够获得较好的估计效果,从而有利于在实际工程中的应用.(In this paper, the proportional, integral and differential signals of the estimation errors are fully utilized to consider the design of the parameterized observer for a class of linear systems. The convergence speed of the observer is accelerated and the overshoot is avoided. The feasibility of the design of the observer is analyzed theoretically, A simple and feasible parameter design method is given from the point of view of practical application. Simulation results show that the observer is not only easy to implement, but also can obtain good estimation effect, which is conducive to the application in practical engineering)

les modulations de largeurs d impulsions vectorielle