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this file is QPSK using simulink..

蚁群算法是一种常用的全局最优化方法，可在matlab中实行他的计算。(The ant colony algorithm is a global optimization method can be implemented in matlab his calculations.)

图像受到裁剪攻击时的一些算法 只要输入图像和想要裁剪的位置 就可以得到想要的结果(Images by cutting attack some algorithm as long as the input image and want to cut position can be the desired results)

matlab函数分类整理，放在手边很有用，适合初学入门者收藏使用。(matlab function sorting, handy very useful for beginners beginner collection use.)

GPS坐标转换 xyz代表在wgs-84 xyz坐标系到相应的纬度 经度 wgs-84高程(GPS coordinate conversion xyz representatives wgs-84 xyz coordinate system to the corresponding latitude longitude elevation wgs-84)

在这个更新的代码，新功能，包括colorbar，samesize包括向量plottting... ％更新版本$日期：5月18日，2011年由梁枯盎斯蒂文斯技术学院 ％更新1：更改int8到Int16的colormap的是，当电流超过64个大，这将导致错误 ％更新2：加入 samesize 为使所有的向量samesize ％更新3：添加colorbar相应的开方的幅度（ü^2+ V键^ 2） ％更新4：错误修复，当你为h = quiverc，这是行不通的。 ------------------------------------------------- ----------- (In this updated code,new features including colorbar, samesize vectors plottting are included Updated version $Date: May 18th,2011 by Liang Kuang at Stevens Institute of Tech Update 1: Change int8 to int16 when current colormap is bigger than 64,which will cause error Update 2: Added samesize for making all the vectors the samesize Update 3: Add colorbar corresponding the the magnitude of sqrt(u^2+v^2) Update 4: bug fixed,when you do h=quiverc, it doesn t work. ------------------------------------------------------------)

说明：  在3d不光滑曲面上的射线跟踪算法，效果比较好，希望可以帮助到大家(3d surface is not smooth in the ray-tracing algorithm, the effect is good, hope you can help to)

功能：该程序用于论文第4章仿真Weibull分布的海杂波。参考文献：罗军辉.《MATLAB 7.0在数字信号处理中的应用》. 电子工业出版社,p174-176. 输入：信干噪比、采样频率、尺度参数、波形参数输出：海杂波的时域和概率密度图(Features: The program for the thesis, Chapter 4 Simulation of Weibull distribution of sea clutter. References: Luo Junhui. " MATLAB 7.0 in Digital Signal Processing." Electronics Industry Publishing House, p174-176. Input: SINR, the sampling frequency, scale parameters, the output waveform parameters: sea clutter and time-domain probability density)

In linear algebra, Gaussian elimination (also known as row reduction) is an algorithm for solving systems of linear equations. It is usually understood as a sequence of operations performed on the associated matrix of coefficients. This method can also be used to find the rank of a matrix, to calculate the determinant of a matrix, and to calculate the inverse of an invertible square matrix. The method is named after Carl Friedrich Gauss, although it was known to Chinese mathematicians as early as 179 AD (see History section).

基于经验模态分解的信号去噪算法，一个很好的例子(Signal Denoising Algorithm based on empirical mode decomposition)