sift特征点匹配，已经用函数封装好，只需调用即可

利用MATLAB实现循环神经网络的例子，便于大家更好的理解循环神经网络RNN的原理。(The example of recurrent neural network is implemented by MATLAB, so that you can have a better understanding of the principle of recurrent neural network RNN.)

BP神经网络的数据分类-语音特征信号分类

关于bragg光纤的 tmm模式的程序(on the mode of procedure t)

数字图像处理第三版，中文版，PDF文档，还算清晰(Chinese version of digital image processing)

LDPC码在matlab环境下的仿真. 还有些地方可以改进.(Simulation of LDPC code.)

simulation on the schtocastic processesx is given

数字信号处理，卷积，输入端算法输出端算法2合1，matlab函数编程(Digital signal processing, convolution, the output of the input algorithm algorithm 2 in 1, matlab functional programming)

Sample code for optimization based on Gradient base. include BFGS, Steepest Descent method, DFP method, Conjugate Gradient method ans so on...

计算晶体的倒格矢.计算时需要输入原来晶体格点所在坐标下的矩阵，这对理解倒格矢量很有意义。(A calculation of the reciprocal lattice vector)

线性调频信号的部分功能 线性调频信号的部分功能(range_migration range_migration)