Spline

介绍了GMSK的背景，基本原理，调制解调方式等内容（英文）(GMSK introduces the background, basic principles, modulation and demodulation, etc. (English))

travel guide to bankok

This function saves a figure or single axes to one or more vector and/or bitmap file formats, and/or outputs a rasterized version to the workspace, with the following properties: - Figure/axes reproduced as it appears on screen - Cropped borders - Embedded fonts (vector formats) - Improved line and grid line styles (vector formats) - Anti-aliased graphics (bitmap formats) - Transparent background supported (pdf, eps, png) - Semi-transparent patch objects supported (png only) - RGB, CMYK or grayscale output (CMYK only with pdf, eps, tiff) - Optionally append to file (pdf only) - Vector formats: pdf, eps - Bitmap formats: png, tif, jpg, bmp, export to workspace This function is especially suited to exporting figures for use in publications and presentations, because of the high quality and portability of media produced.(This function saves a figure or single axes to one or more vector and/or bitmap file formats, and/or outputs a rasterized version to the workspace, with the following properties: - Figure/axes reproduced as it appears on screen - Cropped borders - Embedded fonts (vector formats) - Improved line and grid line styles (vector formats) - Anti-aliased graphics (bitmap formats) - Transparent background supported (pdf, eps, png) - Semi-transparent patch objects supported (png only) - RGB, CMYK or grayscale output (CMYK only with pdf, eps, tiff) - Optionally append to file (pdf only) - Vector formats: pdf, eps - Bitmap formats: png, tif, jpg, bmp, export to workspace This function is especially suited to exporting figures for use in publications and presentations, because of the high quality and portability of media produced.)

说明：  简单实现权限管理.动态加载树，不同类型的用户登录之后加载不同的(Simple realization of rights management)

本文提出了网络编码，减少了验证对飞块成本，有效地防止恶意块的传播实用的安全解决方案。在我们的方案中，用户不仅合作发布内容，但用户也合作来保护自己免受恶意用户通知受影响的节点时，一个恶意的块被发现。(This paper presents a practical security scheme for network coding that reduces the cost of verifying blocks on-the-fly while efficiently preventing the propagation of malicious blocks. In our scheme, users not only cooperate to distribute the content,but (well-behaved) users also cooperate to protect themselves against malicious users by informing affected nodes when a malicious block is found.)

一个按照时间抽取的基2快速傅里叶变换（基2FFT-DIT）。输入倒位序，输出自然顺序。(A time taken by the base 2 fast Fourier transform (base 2FFT-DIT). Enter the inversion sequence, the output of natural order.)

这是MATLAB小型的。下下去看看嘛，活血对你以后的学习有帮助(This is a small MATLAB. To see them go under, Huoxue after learning of your help)

系统学习MATLAB，讲了MATLAB内容，并附有各章例子程序(System to learn MATLAB, the MATLAB stresses the contents of each chapter with examples of procedures)

用Matlab程序实现P阶Levinson-Durbin算法。以一个2阶自回归模型（参数为b0=1, a1=0, a2=0.81）和一个2阶滑动平均模型（参数为b0=1, b1=1, b2=1）为例，选取观测数据长度为1000，分别用一个AR(2)模型和一个AR(10)阶模型来估计其功率谱。设激励信号模型的高斯白噪声的均值为0，方差为1。用Levinson-Durbin算法迭代计算AR模型参数，并用估计出的AR模型参数画出观测信号的功率谱。并对Levinson-Durbin算法的性能进行分析。(Write a small MATLAB program that implements the pthorder Levinson-Durbin (L-D). Run/Test the program using a AR(2) process (b0=1,a1=0, a2=0.81) and an MA(2) (bn=1,1,1) process-about 1000 samples. Use L-D with p=2 (for the AR) and 10 (for the MA). Plot the AR spectra produced in the two cases with L-D. List the direct form and the reflection coefficients in a table. Profile the L-D (total number of computations for a pthorder)

从BPSK到64QAM的调制与解调，方式可选！(From BPSK to 64QAM modulation and demodulation, optional way!)