polar

短时傅里叶变换可以用差分模式来实现，对书上的运算式做了稍许的改变。改变-计算差分序列的第一列数据时用的是第一列的元素减去当前行的最后一列元素。原算法中采用的是第一列元素减去下一行第二列元素。原算法加窗之后结果比较好，不加窗时结果误差很大，而改变之后的算法不加窗效果依然很好。(Short time Fourier transform can be used to achieve the differential mode of expression on the book made a slight change. Change- calculating the difference sequence of the data with the first column is the first column of the matrix by subtracting the current element in the last column of row. Is used in the original algorithm subtracts the elements of the first column of the next row and the second column elements. After the results of the original algorithm windowed better, when the results window without great error, and after changing algorithms no window effect is still very good.)

说明：  rung-kutta 4 he inputs func, x0 and y0 define an IVP y = func(x,y), y(x0) = y0. This provides an approximation to y(x0:h:xn) using fourth-order Runge-Kutta method with step size h

说明：  压缩包中是五六个relax算法程序，可自己下载查看 包括一维信号重构、雷达目标识别、谐波检测等(There are five or six relax algorithm programs in the compressed package, which can be downloaded and viewed by yourself Including one-dimensional signal reconstruction, radar target recognition, harmonic detection, etc.)

lda 的人脸识别matlab源代码(lda Face Recognition Matlab source code)

灰色预测GM(1，1)，结合之前数据，并根据之前数据之间内在关系，预测发展方向(Grey Prediction GM (1,1), combined with previous data, and in accordance with the intrinsic relationship between the data before predicting the direction of development)

This program requires the MATLAB program in order to work, it is written for the SC140 digital signal processor.

用matlab的9个编程例子附程序，可以更好的理解掌握MATLAB，供大家学习与交流。(9 programming example attached matlab program, you can better understand and grasp the MATLAB for everyone to learn and exchange.)

说明：  小波谱分析mallat算法经典程序，希望对大家有所帮助！(Classical algorithm for spectral analysis mallat a small program, we want to help!)

matlab离散信号时域分析，和频域分析实例，适合基础者使用。（来源课堂个人实验）(Matlab discrete time-domain signal analysis and frequency domain analysis of the examples, the use of suitable infrastructure. (Source individual classroom experiment))

matlab数字图像处理，关于角点特征检测的内容(matlab digital image processing, feature detection on the corner of contents)