wenjian

lab experiments of wireless communication laboratory

智能天线波束成型算法DOA music、esprit、root music仿真代码。有仿真结果。(Smart antenna beam forming algorithm DOA music simulation code. Simulation results.)

恒虚警算法 一个干扰环境OS、GOSGO、MOSCA的发现概率随SNR变化曲线(CFAR algorithm is an interference environment OS, the probability of finding GOSGO, MOSCA the curve with SNR)

关于循环谱的FAM算法，用于快速计算循环谱(FAM)

说明：  本程序为带有偏微分的PID控制程序，很好的解决了传统PID控制的不足。(This program is the PID control with partial program, a good solution to the shortage of traditional PID control.)

一个三维FDTD的计算程序，比较有用，适合初学者。(A three-dimensional FDTD calculation procedures, more useful for beginners.)

Matlab中优化多个矩阵相乘以提高计算效率的源代码。(Optimize a number of Matlab matrices to improve the computational efficiency of the source code.)

关于地球物理反演的软件包，重点是一些规则化的程序，压缩文件里包括matlab code和书籍(geophysics inversion, regulariation in inverse problems, and the manual is included)

完整的轮廓线演化程序，国外优秀代码，图像处理或者数值计算相关方向应该有用(The complete contour evolution process, outstanding foreign code, image processing or related to the direction should be useful for numerical calculation)

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.