psnr

一个基于DCT域的数字水印代码，里面有详细的注释说明。(This is a digital watermarking sourcecode based on DCT.Attached with detailed comments and explanation.)

本文章中介绍了行业软件ansys的基础知识，基本操作以及一些高级的应用，对于刚接触ansys的人是很好的入门材料(This article describes the basics of the industry software ansys, the basic operation and some advanced applications, for people new to ansys is a good introductory material)

FMOLS 比OLS更加科学合理，强烈推荐使用(FMOLS )

最全的基于MATLAB的30个神经网络案例分析pdf文件，适用于模式识别以及数学建模(Most complete 30 based on MATLAB neural network case analysis of PDF file, suitable for pattern recognition and mathematical modeling)

Software Testing Research_Achievements, Challenges, Dreams

计算方法中，拉格朗日插值法的源代码。在最后，绘出了拉格朗日插值法的图像和原图像的比较。原创。(Calculation method, Lagrange interpolation source code. In the end, draw a comparison image and the original image Lagrange interpolation. Original.)

（1） 熟悉连续信号经理想采样前后的频谱变化关系，加深对时域采样定理的理解． （2） 熟悉时域离散系统的时域特性 （3） 利用卷积方法观察分析系统的时域特性． （4） 掌握序列傅立叶变换的计算机实现方法，利用序列的傅立叶变换对连续信号，离散信号及系统响应进行频域分析． ((1) familiar with the continuous signal to the manager before and after the sampling of the spectrum changes relations and deepen the time-domain sampling theorem understanding. (2) familiar with the time-domain system discrete time-domain (3) using deconvolution method of analysis in time domain characteristics. (4) master sequence Fourier Transform computer, using the Fourier transform sequence of continuous signals, Discrete signal system response and frequency domain analysis.)

说明：  BPSK信号调制解调，在AWGN与RAYLEIGH信道下的无码性能！(BPSK signal modulation and demodulation in AWGN channel with RAYLEIGH-free code performance!)

通信系统与建模仿真实例精讲第二章参考程序程序(Examples of modeling and simulation of communication systems with reference to Chapter II Procedure for Jingjiang)

清理window7系统垃圾的批处理程序，很好用(Window7 system garbage cleanup batch program, easy to use)