integration

digital signal processing and matlab

曲线拟合功能 实现曲线不同方式的拟合，为初学matlab做曲线拟合(Curve fitting function curve of different fitting )

patch antenna using FDTD method........ skjfhiumghiroghmncjkdngvdgmcduucfu

S变换的小程序包，简单实用，特别适合初学者，一看程序描述就懂。(A quite easy S tranform matlab code. And it is easy to learn it.)

螺旋扫描区域全覆盖算法，区别以往算法，极大程度优化路径规划。(Spiral scanning region full coverage algorithm)

应用简正波理论求解下列声场：如下图所示波导模型，上层为均匀水层，其厚度为100m，声速为1500m/s；下层为硬质均匀海底，海面和海底均平整。点声源位于30m深处，辐射声波频率为25Hz，编程计算10m和90m深度上的传播损失，分析其差别。(The normal wave theory is applied to solve the following sound fields: the waveguide model shown in the following figure shows that the upper layer is a uniform water layer with a thickness of 100m and a sound velocity of 1500m/s; the lower layer is a hard uniform seabed with smooth surface and seabed. The point source is located at the depth of 30m and the frequency of radiated sound wave is 25Hz. The propagation loss at the depth of 10m and 90m is calculated by programming, and the difference is analyzed.)

quadrature amplitude modulation

说明：  FCM算法是应用最广泛的聚类分析方法之一，CFCM也是模糊数学中的一种聚类分析算法。 现在给出的这两个算法是C++代码实现的。 (FCM algorithm is the most widely used method of cluster analysis, CFCM is a kind of fuzzy clustering analysis in the algorithm. Now given by the two algorithms is the C++ code to achieve.)

这是MATLAB图形界面设计（英文原版），有需要的下下来看吧(MATLAB graphical interface design (English original), there is a need in the next down and see)

implementation of ideal lowpass filter