CCFX

说明：  一个用于求圆周率pi的matlab算法。题目背景：取一长面积为1平方米的正方形白纸，在白纸的内部画一个直径为1米的圆，如下图所示。此圆恰好与正方形的四条边分别切于一点，它的面积是 pi*（1/2）^2 =pi/4 ,然后，你可以抓一大把芝麻，一粒一粒地随便地扔到白纸上。在你扔麦子的过程中可以请一位朋友帮助记录：一共扔了几次？有几次是扔在圆里面？ 实验结束后，你只须用“芝麻落在圆里的次数”除以“一共扔的次数”得到的结果就是圆的面积。则pi就是“圆的面积*4”了 当然，你扔的次数越多，结果就越精确！()

全面系统地给出鲁棒设计的源程序及运算实例，希望对研究鲁棒的有所帮助(Comprehensively and systematically given robust design and operator of the source code examples, I hope the study will help Robust)

说明：  matlab实用程序教程，里面包含100个实用编程，可帮助初学者轻松入门matlaB(tutorial matlab utility, which contains 100 practical program that can help beginners get started matlaB)

提取信号七个基于瞬时信息的特征：零中心归一化瞬时幅度功率谱密度的最大值,零中心归一化瞬时幅度绝对值的标准偏差，零中心非弱信号段瞬时相位非线性分量绝对值标准偏差，零中心非弱信号段瞬时相位非线性分量标准偏差，零中心归一化的非弱信号段瞬时频率绝对值的标准偏差，一个信号段的归一化瞬时频率功率谱密度的最大值，根据信号 QPSK 和16QAM在 XI 轴投影的不同表现，提出特征参数。(extract information based on the instan eous features : In the center is one of the instantaneous rate of the power spectral density of the maximum, is a center to the absolute value of the instantaneous rate of the standard deviation, Non-zero weak signal instantaneous phase of the nonlinear component absolute standard deviation, Non-zero weak signal instantaneous phase of the nonlinear component standard deviation, In the center is one of the non-weak signal of the absolute value of the instantaneous frequency standard deviation, a signal to one of the instantaneous frequency of the power spectral density of the maximum, According to 16QAM and QPSK signals XI axis projection in the different performance parameters raised.)

基于卡尔曼滤波的目标跟踪和轨迹预测，广泛应用于雷达信号，MATLAB实现(Kalman filter based target tracking and trajectory prediction, widely used in radar signal, MATLAB realization)

图形处理_matlab代码。用于创建图形，编辑图形，等高线等。 (Graphics processing _matlab code. For creating graphics, editing, graphics, contour lines.)

英文水印综述性文章1对数字水印的基本介绍和展望(The review of digitalwatermarking 1)

说明：   二维空间中的多边形逼近算法 确定三个顶点a，b，c并且其函数值按从小到大排列( Two-dimensional space of polygons in the approximation algorithm)

another progaram that has been in matlab

通过matlab仿真工具仿真分析了APSK调制方式在典型的加性高斯白噪声下的传输性能(Through simulation matlab simulation tool analyzes APSK modulation in a typical additive white Gaussian noise transmission performance)