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direct sequence spread spectrum technology for secure data tranfer

接收端对有干扰污染后的信号进行对应解码，并计算误码率； 将输出仍然排列为n列的矩阵，计算监督矩阵H，用编码矩阵和监督矩阵相乘判断是否有误码，并根据错误图案纠正误码(The receiving end of pollution have interference signals corresponding to decoding, and calculate the bit error rate the output is still ranked as the n column matrix, computing the supervision matrix H, with matrix encoding and monitoring to determine whether matrices have error, and in accordance with error patterns to correct error)

说明：  VB与MATLAB接口使用实例.保准一学就会。(VB and MATLAB interface examples.保准One school will be.)

Displays the orbit of a MEO satellite

Affine finction to detect an dtrack features.

国际象棋,基于matlab 有一定的智能, 具有悔棋等等功能,还有待完善(Chess has some intelligence on matlab has undo function, etc.)

Simpson integration method(3/8)

using matlab litlle introduction and instruction

说明：  这是图像解密的源代码。可以下载分享，加密源代码，上次已经上传(This is the source code to decrypt the image. Download share, encryption source code, the last has been uploaded)

高功率双包层光纤激光器及仿真,端面抽运的掺Yb双包层光纤激光器的基本理论及其仿真(High power double clad fiber lasers and simulation, end-pumped Yb-doped double-clad fiber lasers basic theory and simulation)