DFsystem

direct digital synthesis CORDIC

海杂波模拟和循环对消法实现杂波抑制的matlab源程序,包含不同信噪比下的目标回波以及最小二乘实现的滤波器完成杂波抑制(Sea clutter modeling and cycle cancellation method for clutter suppression matlab source code, including different target echo signal to noise ratio as well as the least-squares filter to achieve complete clutter suppression)

This m-file generate wind speed using ARMA model.

This is Expectation Maximization algorithm code.

Dirichlet Process Mixture Models.

结构分析的有限元与matlab一书中的源代码第四部分，二维线弹性有限元(originnl programs in the book of finite element method in structure analyses and matlab programming part 4)

信号的循环卷积，离散傅里叶变换，产生理想低通滤波器h(n)的函数(Signal of the circular convolution, discrete Fourier transform, resulting in an ideal low-pass filter h (n) function)

单因变量偏最小二乘回归matlab程序 程序尚不完善，固定提取了3个主成分，没有做寻求最佳主成分个数；没有做交叉有效性检验 (Single dependent variable and partial least squares regression matlab The program is not perfect, the fixed extract 3 principal components, do not seek the best number of principal components do not cross validation test)

说明：  卡尔曼滤波算法功能实现，常见的数据处理方法(Solve the problem of noise error)

说明：  小波阈值去噪。对图像加噪，并进行小波1到4层分解去噪，给出信噪比走势图(Wavelet thresholding. Increase the image noise, and 1 to 4 layers of wavelet decomposition denoising, signal to noise ratio charts are given)