aptintechquestionswitsolutn

Signal Detection using GLR method.

不规则光照下自适应阈值的前景背景分离算法(Irregular light of the prospects for adaptive threshold background separation algorithm)

说明：  传输方程中对流项的ccfd数值求解实现及算例。(Numerical solution of convection equation with ccfd method.)

说明：  电力系统中的牛顿拉夫逊算法实现潮流计算，Matlab实现，可以直接读取数据，目前110节点适用(Power System Newton Raphson power flow algorithm, Matlab implementation, you can read the data for the current node 110)

A filter bank structure that can deal effectively with piecewise smooth images with smooth contours, was proposed by Minh N Do and Martin Vetterli. The resulting image expansion is a directional multiresolution analysis framework composed of contour segments, and thus is named contourlet. This will overcome the challenges of wavelet and curvelet transform. Contourlet transform is a double filter bank structure. It is implemented by the pyramidal directional filter bank (PDFB) which decomposes images into directional subbands at multiple scales. In terms of structure the contourlet transform is a cascade of a Laplacian Pyramid and a directional filter bank. In essence, it first use a wavelet-like transform for edge detection, and then a local directional transform for contour segment detection. The contourlet transform provides a sparse representation for two-dimensional piecewise smooth signals that resemble images.

Rayleigh Benard 对流耦合程序，基于格子玻尔兹曼理论，采用Boussinesq 近似边界(Rayleigh Benard Convection, using a LB method, Boussinesq approximation is used for the buoyancy term)

说明：  信号的希尔伯特变换 可以提取信号的顺时针夫 瞬时相位 瞬时频率(Hilbert transform of signal can extract the instantaneous frequency of clockwise instantaneous phase of signal)

方便准确的计算信号的互相关函数和互相关功率谱密度。(To facilitate accurate calculation of the signal cross-correlation function and cross-correlation power spectral density.)

Lanczos algorithm for tridiagunalization of a matrix.

un model forte foarte completed model of the regular pilot comand section