Commonly-used-algorithm-MATLAB

M=512 原图像长度 N=64 K=8 I=zeros(M,M) J=zeros(N,N) BLOCK=zeros(K,K) 显示原图像 I=imread( f:ceshiyuanshitu.bmp ) figure imshow(I) xlabel( 原始图像 ) 显示水印图像 J=imread( f:ceshilogistic_nuaa64.bmp ) figure imshow(J) xlabel( 水印图像 ) 嵌入水印 tem=1 for p=1:N for q=1:N x=(p-1)*K+1 y=(q-1)*K+1 BLOCK=I(x:x+K-1,y:y+K-1) BLOCK=dct2(BLOCK) if J(p,q)==0 a=-1 else a=1 end BLOCK(2,1)=BLOCK(2,1)*(1+a*0.01) BLOCK=idct2(BLOCK) I(x:x+K-1,y:y+K-1)=BLOCK end end 显示嵌入水印后的图像 figure imshow(I) xlabel( 嵌入水印后的图像 ) imwrite(I, f:ceshiembedded.bmp )

卡尔曼滤波的一个简单又实用的例子，帮助理解卡尔曼滤波。(Kalman filter, a simple and practical examples to help understand the Kalman filter.)

MATLAB 阻抗计算例子5，很有参考价值。。(MATLAB impedance calculation example 1, a good reference. .)

AR模型高阶谱分析工具箱即HOSA定阶函数(High-order spectral analysis toolbox AR model order determination function that HOSA)

1. 设计在数组中查找数据模板函数 函数名: SeqSearch 参数名及顺序: 数组:list, 数据:key, 个数:n 返回: 成功:数据在数中的下标,失败: -1(1 designed to find the data in the array template function function name: SeqSearch parameter names and order: Array: list, data: key, number: n Returns: Success: Data on the number of the next standard, failed:-1)

这是一个分数阶傅里叶算法的经典matlab程序(This is a fractional Fu Liye algorithm is the classic matlab program )

说明：  2005MCMA题程序，本程序是自己编的，如有不足请见谅(2005MCMA that procedure, the procedure was by myself, and if there is insufficient please forgiven)

一天征服傅里叶变换，对傅里叶变换做了浅显易懂的分析，对学习数字信号处理有帮助。(One day conquer the Fourier transform, made accessible for the Fourier transform analysis, is helpful to study digital signal processing.)

神经网络解决旅行商问题，讨论了矩阵大小对算法稳定性的影响。土木工程领域中，常用于进行结构参数识别等。(Neural network to solve the traveling salesman problem, discussed the impact of the size of the matrix algorithm stability. The field of civil engineering, structural parameters commonly used in identification.)

含噪脉冲信号进行相关检测,进行逐步线性回归，IMC-PID是利用内模控制原理来对PID参数进行计算。( Noisy pulse correlation detection signal, Stepwise linear regression, The IMC- PID is using the internal model control principle for PID parameters is calculated.)