read_txt_1

this is the qr code gen code

交错网格声波方程正演模拟，交错网格有限差分地震波场计算，二维的声波正演，利用空间10阶，时间2阶。(The CalCulation of the SeismiC Wave一 fieldwith Staggered-grid Finite difference Sheme)

离散傅立叶变换已成为数字信号处理的重要工具，然而，它的计算量较大，运算时间长，在某种程度上却限制了它的使用范围。快速算法大大提高了运算速度，在某些应用场合已能作到实时处理，并且开始应用于控制系统。(Discrete Fourier Transform digital signal processing has become an important tool, however, the calculation of its larger, long computing time, but in a way limits the scope of its use. Fast Algorithm for greatly enhanced speed of operation, in some applications has been able to do real-time processing and control system began to be used.)

海量工业数据处理使用，包括了稳态测试，剔除坏值，计算标准差和平均值等(Massive use of industrial data processing, including the steady-state test, remove bad values, calculate the standard deviation and mean, etc.)

Merge Sort Implementation!!

本文详细介绍了如何实现VC与Matlab的混合编程，对于进行复杂的运算有很好的用处(This paper describes how the VC and Matlab programming mix, for complex calculations to good use)

介绍Auto focus的文章，主要介绍了对焦技术，探测技术；包括频域分析、目标函数、目标函数效能验证、影像评估效能之因素、高斯低通滤波器参数的选取、自动对焦技术；以及相关实验结果与分析。(Introduction Auto focus of the article introduces the focus technology, detection technology including frequency domain analysis, the objective function, the objective function performance verification, image assessment of the effectiveness of the factors, Gaussian low-pass filter parameter selection, auto-focus technology and related experimental results and analysis.)

说明：  数字电子技术基本元件--触发器 的程序, 支持多种触发器图形显示.(Trigger)

循环码的编码译码，以7，3循环码为例，有简单的文字提示(Cyclic code encoding decoding)

免疫算法的matlab代码，应该比较好用，谢谢支持！(immune algorithm Matlab code, it should be more convenient, thank you support!)