code_decode

基于 的窗函数的各种窗函数的设计以及各个函数的性能参数分析以及仿真波形(Window function based on a variety of window function design and performance parameters of each function and the simulation waveform)

说明：  this module shows how well the various wavelet filters perform in practice

用线形天线阵（ULA）进行波达方向估计，代码、注释与说明(Estimate the direction of arrival (DOA) by MUSIC/ESPRIT methods using ULA. Matlab codes and documents included.)

适用于matlab用打靶法解决有边界问题的微分方程，各种参数已经在程序中说明清楚了(shooting method)

可以用于POD分析，得到不同模态以及重建流场(It can be used for POD analysis to obtain different modes and reconstruct flow field)

descripteur sift 3D

Geometric Feature based Face detection

log operator for edge detection

本程序主要实现人脸的定位，程序简单，实现效果一般(The main achievement of the program face positioning, the program is simple to achieve the effect of general)

1、 降噪步骤： （1） 一维信号的小波分解。选择一个小波并确定分解的层次，然后进行分解运算。 （2） 小波分解高频系数的阈值量化。对各个分解尺度下得高频系数选择阈值进行软阈值量化处理。 （3） 一维小波重构。根据小波分解的最底层低频系数和各高频系数进行一维小波重构。 matlab里面有关于去噪的函数，你可以找一下~~ 这说的只是基本原理，希望有所帮助(1, noise reduction steps: (1) one-dimensional signal wavelet decomposition. Select a wavelet decomposition level and determining, and then divide the operation. (2) high coefficient wavelet thresholding. For each decomposition scales have high coefficient selection threshold soft threshold quantization. (3) one-dimensional wavelet reconstruction. According to the lowest level of the low frequency wavelet coefficients and high frequency coefficients of each one-dimensional wavelet reconstruction. There are about denoising matlab function, you can find some ~ ~ This says just the basic principle, we hope to help)