Helmtz_cal_20141205

MATLAB实现图像的SIFT特征提取，并做在不同光照、不同视角下的特征匹配(SIFT MATLAB for image feature extraction, and to do in different lighting, different from the Perspective of feature matching)

kd-tree 是广泛用来处理多维寻找最近点的数据结构。该文件中是由matlab调用c++代码实现的，其中实现包括kd-tree的建立最近点的查找等。(kd-tree is kind of data structure which is widely used to find the nearest point in multi-demensions.The zip file contain matlab and cpp files.The functions implemented include kd-tree building and nearest points searching and so on.)

MATLAB (MATrix LABoratory)具有用法简易、可灵活运用、程式结构强又兼具延展性。这是matlab的详细手册(MATLAB (MATrix LABoratory) has the use of simple, flexible use of program structure both strong and ductile. This is a detailed manual matlab)

一本很好的小波分析书籍，是学习小波的必看之书(A wavelet analysis books, learning wavelet must-see book)

MATLAB程序设计教程，教你怎么学会matlab(MATLAB programming tutorial to teach you how to learn to matlab)

· 2PSK仿真系统编程。调制、信道、检测。 · 误码率仿真。 (2PSK 仿真)

MATLAB的帮助介绍 MATLAB的帮助窗口 MATLAB的命令窗口帮助用法 MATLAB的高级应用 MATLAB在高等代数中的应用 MATLAB在高等数学中的应用 MATLAB的绘图简介 MATLAB的图形窗 绘制三维图形 专用图形简介 绘制二维图形 MATLAB中的样条函数工具箱简介 (MATLAB help introduce MATLAB help window of the MATLAB command window to help the use of MATLAB)

根据采样定理对信号采样，之后依据采样值恢复原信号。恢复的信号基本一致，验证性(Signal is sampled according to the sampling theorem, and then restore the original signal based on sampled values. Recovered signal basically the same, confirmatory)

VORONOI_MOUNTAINS is a MATLAB program which makes a 3D surface plot of a Voronoi diagram. The Voronoi diagram divides up points in the plane by associating each point with the closest of a set of generator points.

在matlab环境下在信道下实现bpsk仿真，有调制程序，解调程序，误码率分析等等。(Code to achieve BPSK simulation)