qpsk2

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 )

Space Vector PWM (SVPWM) is a more sophisticated technique for generating a fundamental sine wave that provides a higher voltage to the motor

这是一个非常好的关于OFDM的英文文章，它是国外的博士论文，对于想了解整个OFDM的朋友来说，可以了解到许多中文文章所没有的知识。(This is a very good article in English on OFDM, which is the doctoral thesis abroad, who want to understand the overall OFDM' s friends, you can understand that many Chinese do not have knowledge of the article.)

求模糊控制器的三角型隶属函数优化后的最小目标值 请大家指教(For triangular fuzzy controller membership functions optimized minimum target U.S. advice please)

Beam propagation method - light propagation along planar waveguide, which is broken. The code could be easily modified for unbroken waveguide and two waveguides.(Beam propagation method- light propagation along planar waveguide, which is broken. The code could be easily modified for unbroken waveguide and two waveguides.)

说明：  文件里是MATLAB语言常用算法程序集，包括插值、函数逼近、数值微分、数值积分、线性方程组的求解等程序(File is a MATLAB algorithm for the assembly language used, including interpolation, function approximation, numerical differentiation, numerical integration, linear equations and other procedures)

BP神经网络模型的建立过程，并利用模型来验证模型的准确性。两部分输入输出数据(BP neural network modeling process and use the model to verify the accuracy of the model. The two input and output data)

Weibull Parameters Calculator

这是我做毕业设计的资料语音通信中的自适应噪声对消系统设计.rar欢迎下载！(This is my graduation project information in the voice communication system design adaptive noise cancellation. Rar welcome to download! )

一篇运动硬化的文章，英文原版,Implementation of cyclic plasticity models based on a general form of kinematic hardening(A kinematic hardening of the article, the original English,Implementation of cyclic plasticity models based on a general form of kinematic hardening)