convolution

包含菲涅尔衍射，夫琅禾费衍射和衍射各种传递函数比较，园，十字叉丝，方孔，考扭曲线等的matlab程序(Includes Fresnel diffraction, Fraunhofer diffraction and diffraction comparison of various transfer functions, garden, crossed wires, the hole, twisted lines of matlab test procedures)

Gabor-function convolution masks are increasingly used in image processing and computer vision. This function simply computes the cosine and sine masks for a given width, period and orientation. The masks returned are properly normalised. It is not highly optimised - e.g. the symmetries are not used to reduce the computation. It is recommended that convolutions with these masks are done using CONVOLVE2 (available from Matlab File Exchange) to take advantage of their low rank. (Gabor-function convolution masks are increasingly used in image processing and computer vision. This function simply computes the cosine and sine masks for a given width, period and orientation. The masks returned are properly normalised. It is not highly optimised- e.g. the symmetries are not used to reduce the computation. It is recommended that convolutions with these masks are done using CONVOLVE2 (available from Matlab File Exchange) to take advantage of their low rank. )

Split PML 2D TM FDTD

[ convex_optimization.rar ] - 凸优化 程序包，包含各种凸优化算法,可供方便调用. [ signal_decomposition_by_bp.rar ] - 基于基追踪（basis pursuit）对信号进行稀疏表示的算法 [ cvx .zip ] - 凸规划建模系统,有助于学习压缩感知([Convex_optimization.rar]- convex optimization package that contains a variety of convex optimization algorithms for easy call [signal_decomposition_by_bp.rar]-. Based on the base track (basis pursuit) algorithm for signal sparse representation [cvx .zip]- Convex planning modeling system, including user manuals, help learning compressed sensing)

Tranformasi wavelet merupakan perbaikan dari transformasi Fourier. Transformasi Fourier hanya dapat menangkap informasi apakahsuatu sinyal memiliki frekuensi tertentu ataukah tidak, tapi tidak dapat menangkap dimana frekuensi itu terjadi. Jika Transformasi Fourier hanya memberikan informasi tentang frekuensisuatu sinyal, maka transformasi wavelet memberikan informasi tentang kombinasi skala dan frekuensi

说明：  基于Mie散射理论对壳核结构的粒子的光学参数进行模拟(Mie scattering theory based on the structure of core-shell particles to simulate the optical parameters)

This script shows orthogonallity between sub-carriers in OFDM is realized when signals complete integer number of cycles over same number of samples.

Please read THIS DOCUMENTE

基于Wolf方法计算Lyapunov指数，直接运行文件Wolf_3DLyapunov.m(Wolf calculated based on the Lyapunov exponent, Run the file directly Wolf_3DLyapunov.m)

This Program simulates the MVDR beamformer which is useful for beginners.