GrangerTest

Communication tehnoligies Part1

基于MATLAB实现了极坐标下的傅里叶变换，对一个给定 n×n 的二维信号，其计算复杂度等价于笛卡尔坐标下的2D-FFT，可广泛应用于图像处理和分析。(A fast high accuracy Polar FFT algorithm is given in the software package written in MATLAB. For a given 2D signal of size n×n, the algorihtm s complexity is just like in a Cartesian 2D-FFT, which can be used widely in image processing and analysis.)

该程序实现了压缩感知理论中采用矩阵的优化。在压缩感知理论中，要求采样矩阵与稀疏矩阵的相关性越低越好。该代码采用一种交替投影的方法实现采用矩阵的优化，有效降低其相关性。(The program to achieve the optimization of the use of matrix theory compressed sensing. Requirements of the sample matrix and sparse matrix theory of compressed sensing, the lower the better. The code uses an alternating projection method to achieve the optimization of the use of matrix to effectively reduce the correlation.)

这是一个用matalb语言实现的FIR滤波器的源代码，直接可以运行，已经经过本人调试通过，对于信号处理的同行有帮助。(this is a matlab program that compute the fir filter and it was been tested by myself.)

盲源分离中最为经典的不动点算法——FastICA,该算法简单，对初学者有很大的帮助(Blind Source Separation in the most classical fixed-point algorithm- FastICA, the algorithm is simple, for beginners there is a great help)

说明：  OFDM注水算法matlab仿真代码 可以实现系统仿真 子函数(OFDM water filling matlab)

采用matlab，实现了gabor滤波的核心功能(gabor filter is very famous and really useful for texture feature extraction and image retrivel. attached code is wrriten well using matlab. More detail can be referenced in the paper <texture features for browsing and retrieval of image data>)

Particle filter implementation. Simple and easy. It used only four particles. But it easy to understand. gook Lucky

对变速率的数字信号处理的仿真实验进行验证，进行相应的滤波器的设计，以减少变速率中的失真(Variable rate digital signal processing of the simulation experiment for authentication, corresponding to the filter design, in order to reduce the distortion in the variable-rate)

位移约束下，利用ESO方法进行连续体结构拓扑优化(ESO method-based topology optimization of the continuous structure under the constraint of displacement)