SlidingControToChaos

一个OFDM 系统程序，产生的事2k DVB-T 信号，具体参数在程序中已经给出。(a ofdm system programe. DVB-T signal is produced. All description of parameters are given.)

he m-file helps you o understand the generatio,transmission and reception of an ofdm signal, and also shows the effect of the channel noise and the HPA on the ofdm signal.

一种基于压缩感知的正弦信号重构算法，已经经过仿真验证(A sinusoidal signal reconstruction algorithm based on compressed sensing has been verified through simulation)

扩频通信中常用的gold码生成的matlab源代码(GOLD commonly used in spread spectrum communication code generation source code matlab)

利用MATLAB软件，通过编程来计算计算卫星坐标，通过输入相关参数之后就可以给出卫星的坐标(Using MATLAB software, programmed to calculate the coordinates of the satellite is calculated by the following input parameters can be given the coordinates of the satellite)

最坏情况下使用O(n)次比较,2分搜索算法最坏情形复杂度O(logn)次比较,2分搜索算法比之线性搜索最坏情况下要好.(O (n) comparisons using the worst case, worst-case 2 minutes searching algorithm complexity of O (logn) comparisons, two points lower than the linear search algorithm search for the worst-case better.)

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 )

MATLAB绘图，包含了MATLAB常用的绘图命令，对学习MATLAB具有很大的帮助。(MATLAB graphics, including the popular MATLAB graphics commands, to learn MATLAB great help.)

一个式子， 试用Matlab画出 ,f 的时域波形及其频谱，并验证对称性(A statement holds, the trial Matlab draw, f the time-domain waveform and its spectrum, and verify the symmetry)

说明：  两个用MATLAB语言编写的相机标定程序，一个是Tsai的一个是Zhang的(The two languages used MATLAB camera calibration procedure, one is a Tsai is Zhang)