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用matlab实现拟合的几个例子源码， ％x,y应是原始数据，下面的数据仅是为了说明问题而自设的示例数据。(The fitting of several examples of source code with the matlab, x, y should be the original data, the data is only to illustrate the problem, since the set of sample data.)

Xilinx WCDMA_V5 ddc_virtex5 CPRI IFData_3Carrier_1e5

basics of plotting in matlab

一种fourier的快速变换，计算结果比matlab里的fft节省一半空间(A Fourier transform of fast, the calculation results of FFT than matlab save half space)

一种常用的且易于工程实现的分数延时滤波器设计算法加窗法仿真，可以通过设定不同的滤波器阶数观察分数延时滤波器的幅频和相频响应。(A commonly used and easy to implement fractional delay filter design algorithm windowing simulation, you can set the filter order to observe the fractional delay filter amplitude and phase frequency response.)

IEEE30 bus 系统的matpower格式的数据格式(IEEE30 bus system matpower format data format)

说明：  粒子滤波的matlab程序，用于求解航向姿态角(Particle filter matlab program for solving course attitude angle)

PLOT_FRONTS space-time plot of rupture front and process zone tail slip velocty threshold to define rupture front rupture times (for which V=Veps) at each point with quadratic time interpolation

matlab程序，解决sift算法对图像特征点的检测，描述和匹配，特征点个数的计算以及程序运行时间，可与其他算法做比较，直接修改参数即可运行(matlab for image matching，include the time and the number of the interest points)

Function to plot an arc in matlab